{"title":"Distinguished Gemstones","description":"\u003cp\u003eGemstones rated 35–40 on the Otzera 50 — clearly above commercial material, with one identifiable compromise at most. Accomplished, noteworthy stones with a clear reason to be deliberately selected and collected.\u003c\/p\u003e\u003cp\u003eEvery score is judged relative to the stone’s own species. \u003ca href=\"\/pages\/otzera-50\"\u003eHow the Otzera 50 works\u003c\/a\u003e\u003c\/p\u003e","products":[{"product_id":"1-71-ct-paraiba-type-tourmaline-gia-certified","title":"1.71 ct Paraiba-Type Tourmaline — GIA Report","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eA lovely green-blue tourmaline with the characteristic electric color collectors associate with Paraiba-type gems. This transparent 1.71 ct oval is cut in a modified brilliant style, giving it lively face-up brilliance and a distinctive tropical blue-green appearance. GIA identifies it as a copper- and manganese-bearing tourmaline that may be called “Paraiba tourmaline” in the trade.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003eGemstone: Tourmaline\u003cbr\u003eTrade Name: Paraiba-type Tourmaline\u003cbr\u003eWeight: 1.71 ct\u003cbr\u003eShape \/ Cut: Oval Modified Brilliant Cut\u003cbr\u003eMeasurements: 8.69 × 6.16 × 4.91 mm\u003cbr\u003eColor: Green-Blue\u003cbr\u003eOrigin: Mozambique\u003cbr\u003eTreatment: Heated (standard for Paraiba tourmaline)\u003cbr\u003eOtzera ID: OTZ-2026-00325\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003eOtzera 50: 39\/50 — Distinguished\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTreatment \u0026amp; Origin Disclosure\u003c\/strong\u003e\u003cbr\u003eCopper-bearing Paraiba tourmaline is routinely heated to clear purplish tones and reveal its vivid blue-green. The change is permanent and needs no special care. Origin is Mozambique, as indicated by GIA’s testing; it is not printed on the report because the optional origin service was not requested. GIA identifies the stone as a copper- and manganese-bearing tourmaline and states that it may be called “Paraiba tourmaline” in the trade.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eLaboratory Documentation\u003c\/strong\u003e\u003cbr\u003eAccompanied by GIA Tourmaline Report No. 5191602078.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eTourmaline is suitable for jewelry wear with sensible care. Clean with warm water, mild soap and a soft brush; avoid sharp impacts and sudden temperature changes.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details, laboratory documentation and O50 evaluation.\u003c\/p\u003e","brand":"otzera","offers":[{"title":"Natural","offer_id":50920510488823,"sku":"4396751","price":4750.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/otzera-1-71ct-paraiba-tourmaline-face-up_2aaaa50d-cd2a-42ed-b759-68c6553dc540.jpg?v=1787652654"},{"product_id":"spessartite-otz-2026-01626","title":"2.14 ct Fanta-Orange Spessartite Garnet","description":"\u003cp\u003eVivid orange color is the defining feature of this 2.14 ct spessartite garnet. The oval mixed cut shows lively brilliance, with only minor windowing and extinction through the table. Small crystal inclusions are not readily visible to the unaided eye, while some light wear at the facet junctions reflects normal handling.\u003c\/p\u003e\n\n\u003cp\u003eFor a collector, the appeal is straightforward: bright \"Fanta-orange\" color, strong face-up presence and a substantial size over two carats.\u003c\/p\u003e\n\n\u003cp\u003eOtzera 50: 35\/50 — Distinguished\u003cbr\u003e\nWeight: 2.14 ct\u003cbr\u003e\nDimensions: 7.96 × 6.30 × 4.21 mm\u003cbr\u003e\nTreatment: None\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003cbr\u003eGarnet is one of the few gem families that is virtually never treated. Its color, brightness and clarity are exactly as nature made them.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51034350354679,"sku":"OTZ-2026-01626","price":825.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01626-a.jpg?v=1786960150"},{"product_id":"purple-sapphire-otz-2026-01627","title":"1.85 ct Unheated Sri Lankan Purple Sapphire","description":"\u003cp\u003eSoft lavender-purple color and an unusual triangular shape give this 1.85 ct sapphire a distinctive collector appeal. The stone is unheated and from Sri Lanka, two details that add meaningful interest beyond its attractive face-up appearance.\u003c\/p\u003e\n\n\u003cp\u003eThe cut is generally well balanced and lively, while fine internal needles and a small cavity near the table edge are visible on closer inspection. These characteristics are reflected openly in its Otzera 50 evaluation rather than hidden from view.\u003c\/p\u003e\n\n\u003cp\u003eOtzera 50: 37\/50 — Distinguished\u003cbr\u003e\nWeight: 1.85 ct\u003cbr\u003e\nDimensions: 9.93 × 6.42 × 4.12 mm\u003cbr\u003e\nOrigin: Sri Lanka\u003cbr\u003e\nTreatment: None\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51034350387447,"sku":"OTZ-2026-01627","price":1250.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01627-a.jpg?v=1786961898"},{"product_id":"aquamarine-otz-2026-01628","title":"3.22 ct Blue Emerald-Cut Aquamarine","description":"\u003cp\u003eBright blue color and a classic emerald cut give this 3.22 ct aquamarine a crisp, elegant look with strong face-up presence. Minor windowing and extinction, light polish issues, and a small pavilion feather are reflected in its Otzera 50 evaluation. Otzera 50: 36\/50 - Distinguished.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003cbr\u003eHeated (standard for aquamarine). Most aquamarine is gently heated to clear a faint green or yellow tint and leave a purer blue. The change is permanent and needs no special care.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51034350420215,"sku":"OTZ-2026-01628","price":965.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01628-b.jpg?v=1786962925"},{"product_id":"red-spinel-otz-2026-01629","title":"1.63 ct Vivid Red Spinel","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eVivid red color with a subtle pink modifier and exceptional brightness make this 1.63 ct spinel immediately striking. Its oval mixed cut shows very little windowing or extinction, producing strong brilliance across the face. A cluster of eye-visible crystals through the table sits close to the body color and gives the stone distinctive natural character.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003eGemstone: Natural Spinel\u003cbr\u003eWeight: 1.63 ct\u003cbr\u003eShape \/ Cut: Oval Mixed Cut\u003cbr\u003eMeasurements: 8.01 × 6.08 × 4.07 mm\u003cbr\u003eColor: Vivid Red with subtle pink modifier\u003cbr\u003eClarity: Eye-visible crystal cluster through the table\u003cbr\u003eTreatment: None\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003eOtzera 50: 40\/50 — Distinguished\u003cbr\u003eFace-Up Performance: 93%\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003cbr\u003eSpinel is rarely treated, and much of its appeal to collectors is that its color is natural.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eSpinel is durable and well suited to jewelry wear. Clean with warm water, mild soap and a soft brush.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details, disclosure record and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51034350452983,"sku":"OTZ-2026-01629","price":2450.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01629-d.jpg?v=1786964740"},{"product_id":"sunstone-otz-2026-01630","title":"3.20 ctw Matched Oregon Sunstone Pair","description":"\u003cp\u003eRich sunset color gives this matched pair of Oregon sunstones their character. Together the two stones weigh 3.20 carats, with each stone approximately 1.60 ct, and their cushion-shaped modified brilliant cuts are exceptionally well calibrated in size and outline.\u003c\/p\u003e\n\n\u003cp\u003eAcross the pair, orange, golden yellow and warm brown tones shift through the facets, creating the multicolored appearance prized in fine Oregon sunstone. Both stones are clean to the unaided eye, with only minor inclusions visible under magnification. One stone has a small chip at a corner, which is reflected in the Otzera evaluation and disclosed here.\u003c\/p\u003e\n\n\u003cp\u003eFor a collector or jewelry project, the strongest attribute is the pairing itself: two substantial, closely matched Oregon sunstones with complementary color and proportions.\u003c\/p\u003e\n\n\u003cp\u003eOtzera 50: 40\/50 — Distinguished\u003cbr\u003e\nTotal weight: 3.20 ctw (1.60 ct each)\u003cbr\u003e\nApprox. dimensions per stone: 8.08 × 5.95 × 4.20 mm\u003cbr\u003e\nOrigin: Oregon, USA\u003cbr\u003e\nTreatment: None\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003cbr\u003eOregon sunstone is a natural, untreated American gem. Its color and copper shimmer are exactly as they formed.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51040489570551,"sku":"OTZ-2026-01630","price":1779.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01630-d.jpg?v=1787067162"},{"product_id":"citrine-otz-2026-01631","title":"7.81 ctw Custom-Cut Citrine Pair","description":"\u003cp\u003eGolden yellow color and dramatic custom cutting define this 7.81 ctw matched pair of citrines. The two stones weigh 4.01 and 3.80 ct and are closely matched in size and outline. Each has a sculptural modified hexagonal form with pointed, snowflake-like edges and a lively faceting pattern that creates strong movement and brightness.\u003c\/p\u003e\n\n\u003cp\u003eThe pair is clean to the unaided eye, with only subtle color-zoning lines visible from the pavilion. What makes these stones especially collectible is the cutting: this is not a standard commercial shape, but a distinctive custom design executed with a high level of symmetry and craftsmanship.\u003c\/p\u003e\n\n\u003cp\u003eOtzera 50: 38\/50 — Distinguished\u003cbr\u003e\nTotal weight: 7.81 ctw (4.01 ct + 3.80 ct)\u003cbr\u003e\nApprox. dimensions per stone: 12.1 × 10.5 × 6.4 mm\u003cbr\u003e\nTreatment: Heated (standard for citrine)\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003cbr\u003eMost citrine is quartz gently warmed to a golden color, a permanent and long-accepted practice.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51040489636087,"sku":"OTZ-2026-01631","price":499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01631-d.jpg?v=1787067019"},{"product_id":"tsavorite-otz-2026-01632","title":"2.14 ctw Matched Tsavorite Garnet Pair","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eVivid green color and strong brightness give this 2.14 ctw matched pair of tsavorite garnets immediate appeal. The two oval-cut stones weigh 1.12 and 1.02 ct, with closely matched table sizes and proportions that make them especially well suited as a pair. Surface wear, including chips and abrasions along some facet junctions, is reflected in the Otzera evaluation rather than hidden from view.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003eGemstone: Natural Tsavorite Garnet Pair\u003cbr\u003eTotal Weight: 2.14 ctw\u003cbr\u003eIndividual Weights: 1.12 ct + 1.02 ct\u003cbr\u003eShape \/ Cut: Oval Cut\u003cbr\u003eApprox. Measurements: 6.7–7.0 × 5.0 × 3.1–3.4 mm\u003cbr\u003eColor: Vivid Green\u003cbr\u003eCondition: Chips and abrasions present along some facet junctions, primarily on the pavilion\u003cbr\u003eTreatment: None\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003eOtzera 50: 38\/50 — Distinguished\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003cbr\u003eGarnet is one of the few gem families that is virtually never treated. Its color, brightness and clarity are exactly as nature made them.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eGarnet is suitable for jewelry wear with sensible care. Because surface wear is present, the pair should be inspected by a jeweler before setting. Clean with warm water, mild soap and a soft brush.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving the pair’s identifying details, condition notes and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51040489898231,"sku":"OTZ-2026-01632","price":2250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01632-c.jpg?v=1787066931"},{"product_id":"1-70-ct-merelani-mint-grossularite-garnet","title":"1.70 ct Merelani Mint Grossular Garnet","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eA distinctive pastel mint-green color gives this 1.70 ct grossular garnet from the Merelani Hills of Tanzania immediate collector appeal. Its well-proportioned round modified brilliant cut produces lively brilliance and strong face-up light return. Merelani mint garnet is encountered in comparatively limited quantities, and this stone combines the variety's soft green color with an attractive 1.70 ct size and bright round presentation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003eGemstone: Natural Mint Grossular Garnet\u003cbr\u003eSpecies: Garnet\u003cbr\u003eVariety: Grossularite Garnet\u003cbr\u003eWeight: 1.70 ct\u003cbr\u003eShape \/ Cut: Round Modified Brilliant\u003cbr\u003eMeasurements: 7.02–7.12 × 5.11 mm\u003cbr\u003eColor: Pastel Green\u003cbr\u003eTransparency \/ Clarity: Transparent \/ Lightly Included\u003cbr\u003eOrigin: Merelani Hills, Tanzania\u003cbr\u003eTreatment: None\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003eOtzera 50: 40\/50 — Distinguished\u003cbr\u003eFace-Up Performance: 83%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eClean with warm water, mild soap and a soft brush. Avoid sharp impacts or aggressive ultrasonic cleaning unless first examined by a qualified jeweler.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eOtzera ID: OTZ-2026-01636\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51135147245815,"sku":"OTZ-2026-01636","price":1885.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01636-c_14281181-8cea-4366-8ef6-cecaf02ff375.jpg?v=1792917328"},{"product_id":"1-57-ct-natural-purple-sapphire","title":"1.57 ct Unheated Sri Lankan Purple Sapphire","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eA lively purple sapphire with excellent clarity and the added appeal of untreated status and Sri Lankan provenance. At 1.57 carats, its oval modified brilliant cut gives the stone a bright, energetic face-up appearance, while only a minor fingerprint near the periphery is noted in the evaluation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eGemstone:\u003c\/strong\u003e Natural Purple Sapphire\u003cbr\u003e\u003cstrong\u003eSpecies:\u003c\/strong\u003e Corundum\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.57 ct\u003cbr\u003e\u003cstrong\u003eShape \/ Cut:\u003c\/strong\u003e Oval Modified Brilliant\u003cbr\u003e\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 7.56 × 6.36 × 4.09 mm\u003cbr\u003e\u003cstrong\u003eOrigin:\u003c\/strong\u003e Sri Lanka\u003cbr\u003e\u003cstrong\u003eTreatment:\u003c\/strong\u003e None\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eOtzera 50:\u003c\/strong\u003e 37\/50 — Distinguished\u003cbr\u003e\u003cstrong\u003eFace-Up Performance:\u003c\/strong\u003e 75%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51137217790199,"sku":"OTZ-2026-01639","price":1560.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01639-purple-sapphire-3.png?v=1789009463"},{"product_id":"aquamarine-otz-2026-01638","title":"9.05 ct Natural Nigerian Aquamarine","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eAt 9.05 carats, this Nigerian aquamarine offers impressive presence in a cushion modified brilliant cut. Its cool blue appearance and substantial size make it an appealing collector stone with the scale to work equally well in a statement setting.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003eGemstone: Natural Aquamarine\u003cbr\u003eSpecies: Beryl\u003cbr\u003eWeight: 9.05 ct\u003cbr\u003eShape \/ Cut: Cushion Modified Brilliant\u003cbr\u003eMeasurements: 15.52 × 11.70 × 8.34 mm\u003cbr\u003eOrigin: Nigeria\u003cbr\u003eTreatment: Heated (standard for aquamarine)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003eOtzera 50: 37\/50 — Distinguished\u003cbr\u003eFace-Up Performance: 68%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003cbr\u003eMost aquamarine is gently heated to clear a faint green or yellow tint and leave a purer blue. The change is permanent and needs no special care.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eAquamarine is generally suitable for jewelry wear. Clean with warm water, mild soap and a soft brush; avoid harsh chemicals and thermal shock.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51138651226359,"sku":"OTZ-2026-01638","price":3150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01638-aquamarine-3.jpg?v=1789008057"},{"product_id":"emerald-otz-2026-01642","title":"2.94 ct Colombian Emerald — GIA Origin Report","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eA classic Colombian emerald just under three carats, combining a desirable cushion shape with the provenance collectors look for in fine emerald material. Its transparent green appearance is complemented by GIA documentation confirming Colombian geographic origin and Minor Clarity Enhancement (F1).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003eGemstone: Natural Emerald\u003cbr\u003eSpecies: Natural Beryl\u003cbr\u003eWeight: 2.94 ct\u003cbr\u003eShape: Cushion\u003cbr\u003eCutting Style: Brilliant Cut crown \/ Modified Brilliant Cut pavilion\u003cbr\u003eMeasurements: 8.86 × 8.57 × 6.36 mm\u003cbr\u003eColor: Green\u003cbr\u003eTransparency: Transparent\u003cbr\u003eGeographic Origin: Colombia\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003eOtzera 50: 38\/50 — Distinguished\u003cbr\u003eFace-Up Performance: 85%\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTreatment \u0026amp; Origin Disclosure\u003c\/strong\u003e\u003cbr\u003eGIA determined the stone to be of Colombian origin and identified Minor Clarity Enhancement (F1).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eLaboratory Documentation\u003c\/strong\u003e\u003cbr\u003eAccompanied by GIA Emerald Origin Report No. 5192634252, dated September 10, 2018.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eEmeralds should be handled with appropriate care. Clean gently with lukewarm water, mild soap and a soft brush. Avoid ultrasonic and steam cleaning, and inform any jeweler of the stone's clarity enhancement before repair, setting or cleaning.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by its Otzera Digital Gem Passport preserving identifying details, GIA documentation, treatment disclosure and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51138651259127,"sku":"OTZ-2026-01642","price":14725.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01642-emerald-alt.jpg?v=1790472434"},{"product_id":"blue-sapphire-otz-2026-01644","title":"1.47 ct Unheated Yogo Sapphire — GIA Origin Report","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eA rare American sapphire from Montana's famed Yogo Gulch, this 1.47 ct natural blue sapphire combines strong saturation and high transparency with the collector appeal of GIA-confirmed origin and no indications of heating. Faceted Yogo sapphires above one carat are notably scarce, making its size and locality the defining features of this stone.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003eGemstone: Natural Blue Sapphire\u003cbr\u003eSpecies: Corundum\u003cbr\u003eWeight: 1.47 ct\u003cbr\u003eShape \/ Cut: Oval Modified Brilliant Cut\u003cbr\u003eMeasurements: 7.10 × 6.46 × 3.61 mm\u003cbr\u003eColor: Blue\u003cbr\u003eTransparency: Transparent\u003cbr\u003eOrigin: USA (Yogo Gulch), Montana\u003cbr\u003eTreatment: No indications of heating\u003cbr\u003eCondition: Surface scratches and abrasions are present; professional repolishing is recommended.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003eOtzera 50: 36\/50 — Distinguished\u003cbr\u003eFace-Up Performance: 70%\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTreatment \u0026amp; Origin Disclosure\u003c\/strong\u003e\u003cbr\u003eGIA determined the geographic origin to be USA (Yogo Gulch) and reported no indications of heating.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eLaboratory Documentation\u003c\/strong\u003e\u003cbr\u003eAccompanied by GIA Sapphire Origin Report No. 5221467846, dated June 8, 2022.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eProvenance \/ Collector Significance\u003c\/strong\u003e\u003cbr\u003eYogo sapphires are prized for their highly specific Montana provenance and are typically encountered in small sizes. A faceted Yogo above one carat is particularly uncommon, giving this stone meaningful locality and size appeal for collectors of American gemstones.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eSapphire is durable for jewelry wear, but this stone currently shows notable facet-surface wear. Professional repolishing is recommended before setting. If repolished, the stone should be reweighed and remeasured and its documentation reviewed for consistency.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details, GIA documentation, treatment and origin disclosures, condition notes and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51150481522935,"sku":"OTZ-2026-01644","price":9850.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01644-yogo-sapphire-1.jpg?v=1789159424"},{"product_id":"1-40-ct-vietnamese-ruby-gia-origin-report","title":"1.40 ct Vietnamese Ruby — GIA Origin Report","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eA vivid purple-red natural ruby from Vietnam with strong transparency and a compact cushion mixed cut. At 1.40 ct, the stone combines documented Vietnamese origin with lively color and a clean face-up appearance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003eGemstone: Natural Ruby\u003cbr\u003eSpecies: Natural Corundum\u003cbr\u003eWeight: 1.40 ct\u003cbr\u003eShape \/ Cut: Cushion Mixed Cut\u003cbr\u003eMeasurements: 5.86 × 5.32 × 4.44 mm\u003cbr\u003eOrigin: Vietnam\u003cbr\u003eTreatment: Heated\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003eOtzera 50: 37\/50 — Distinguished\u003cbr\u003eFace-Up Performance: 85%\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTreatment \u0026amp; Origin Disclosure\u003c\/strong\u003e\u003cbr\u003eGIA Sapphire Origin Report 6204859040 identifies the stone as natural corundum, natural ruby, purple-red, of Vietnamese geographic origin, heated.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eLaboratory Documentation\u003c\/strong\u003e\u003cbr\u003eAccompanied by GIA Sapphire Origin Report No. 6204859040, dated February 1, 2020.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eRuby is highly durable and suitable for everyday jewelry with normal care. Clean with warm water, mild soap and a soft brush.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details, origin and treatment disclosures, and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51159530733815,"sku":"OTZ-2026-01653","price":2400.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/vruby-1.jpg?v=1792916745"},{"product_id":"4-06-ct-ceylon-blue-sapphire-gia-origin-report","title":"4.06 ct Ceylon Blue Sapphire — GIA Origin Report","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eA substantial 4.06 ct natural blue sapphire from Sri Lanka with a classic cushion mixed cut and strong face-up presence. Its saturated blue appearance, excellent transparency and documented Ceylon origin make provenance and size meaningful parts of its collector appeal.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003eGemstone: Natural Blue Sapphire\u003cbr\u003eSpecies: Natural Corundum\u003cbr\u003eWeight: 4.06 ct\u003cbr\u003eShape \/ Cut: Cushion Mixed Cut\u003cbr\u003eMeasurements: 9.92 × 7.16 × 5.41 mm\u003cbr\u003eOrigin: Sri Lanka (Ceylon)\u003cbr\u003eTreatment: Heated\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003eOtzera 50: 39\/50 — Distinguished\u003cbr\u003eFace-Up Performance: 80%\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTreatment \u0026amp; Origin Disclosure\u003c\/strong\u003e\u003cbr\u003eGIA Sapphire Origin Report 1216818065 identifies the stone as natural corundum, blue sapphire, of Sri Lankan geographic origin, heated.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eLaboratory Documentation\u003c\/strong\u003e\u003cbr\u003eAccompanied by GIA Sapphire Origin Report No. 1216818065, dated June 30, 2021.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eSapphire is highly durable and suitable for everyday jewelry with normal care. Clean with warm water, mild soap and a soft brush.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details, origin and treatment disclosures, and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51159530766583,"sku":"OTZ-2026-01654","price":8900.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01654-ceylon-blue-sapphire-1.jpg?v=1789354081"},{"product_id":"1-00-ct-unheated-natural-ruby","title":"1.00 ct Unheated Natural Ruby","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eA vivid slightly purplish-red natural ruby with the added collector appeal of no evidence of heat. At exactly 1.00 ct, the stone combines strong saturation, a pleasing oval outline and is a great introduction to ruby.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003eGemstone: Natural Ruby\u003cbr\u003eSpecies: Natural Corundum\u003cbr\u003eWeight: 1.00 ct\u003cbr\u003eShape \/ Cut: Oval Mixed Cut\u003cbr\u003eMeasurements: 6.30 × 5.20 × 3.44 mm\u003cbr\u003eColor: Vivid Slightly Purplish Red\u003cbr\u003eClarity: Slightly Included\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003eOtzera 50: 36\/50 — Distinguished\u003cbr\u003eFace-Up Performance: 78%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTreatment \u0026amp; Origin Disclosure\u003c\/strong\u003e\u003cbr\u003eProfessional Gem Sciences Laboratory reported no evidence of heat.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLaboratory Documentation\u003c\/strong\u003e\u003cbr\u003eAccompanied by Professional Gem Sciences Laboratory Carte Blu Report No. 45020205, dated March 5, 2020.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eRuby is well suited to jewelry wear. Clean with warm water, mild soap and a soft brush; avoid harsh chemicals and sudden temperature changes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details, laboratory documentation, treatment disclosure and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51159565631735,"sku":"OTZ-2026-01655","price":1600.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01655-ruby-alt-1.jpg?v=1790457917"},{"product_id":"1-38-ct-ceylon-yellow-sapphire","title":"1.38 ct Ceylon Yellow Sapphire","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eA vivid natural yellow sapphire from Sri Lanka with a bright oval mixed cut and strong face-up performance. At 1.38 ct, saturated yellow color and Ceylon provenance are the principal collector attributes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003eGemstone: Natural Yellow Sapphire\u003cbr\u003eSpecies: Natural Corundum\u003cbr\u003eWeight: 1.38 ct\u003cbr\u003eShape \/ Cut: Oval Mixed Cut\u003cbr\u003eMeasurements: 7.90 × 5.39 × 3.84 mm\u003cbr\u003eOrigin: Sri Lanka (Ceylon)\u003cbr\u003eTreatment: Heated\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003eOtzera 50: 36\/50 — Distinguished\u003cbr\u003eFace-Up Performance: 90%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eSapphire is highly durable and well suited to jewelry wear. Clean with warm water, mild soap and a soft brush.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51159570678007,"sku":"OTZ-2026-01648","price":825.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01648-ceylon-yellow-sapphire-1.jpg?v=1789353759"},{"product_id":"6-75-ct-pear-cut-tanzanite","title":"6.75 ct Pear-Cut Tanzanite","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eA substantial 6.75 ct natural tanzanite with a pear-shaped mixed cut and rich violet-blue appearance. Its generous size gives the stone strong presence, while the rounded pear outline and bright flashes across the crown make it especially suited to a statement ring or pendant.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003eGemstone: Natural Tanzanite\u003cbr\u003eSpecies: Zoisite\u003cbr\u003eWeight: 6.75 ct\u003cbr\u003eShape \/ Cut: Pear Mixed Cut\u003cbr\u003eMeasurements: 11.61 × 10.66 × 8.10 mm\u003cbr\u003eOrigin: Tanzania\u003cbr\u003eTreatment: Heated (standard for tanzanite)\u003cbr\u003eCondition: Some facet abrasion is present\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003eOtzera 50: 36\/50 — Distinguished\u003cbr\u003eFace-Up Performance: 80%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003cbr\u003eTanzanite is gently warmed after mining to bring out its blue-violet color. This has been standard practice since the gem was found in Tanzania in 1967, and it is how all tanzanite is valued. The color is permanent and stable and needs no special care.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eTanzanite is best suited to thoughtful wear. Clean with warm water, mild soap and a soft brush; avoid ultrasonic cleaning, sharp impacts and sudden temperature changes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51187941736695,"sku":"OTZ-2026-01661","price":3650.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01661-tanzanite-1_3b66cd36-4462-4b79-8a37-d4da55d99344.jpg?v=1789846225"},{"product_id":"2-08-ct-tanzanian-tanzanite","title":"2.08 ct Tanzanite","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eA richly saturated 2.08 ct natural tanzanite with the deep blue-violet color that gives the variety its unmistakable appeal. The oval modified brilliant cut produces lively flashes across the face, while the two-carat size gives the stone a strong presence without becoming oversized for jewelry.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eGemstone:\u003c\/strong\u003e Natural Tanzanite\u003cbr\u003e\u003cstrong\u003eSpecies:\u003c\/strong\u003e Zoisite\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.08 ct\u003cbr\u003e\u003cstrong\u003eShape \/ Cut:\u003c\/strong\u003e Oval Modified Brilliant\u003cbr\u003e\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 8.84 × 6.82 × 4.90 mm\u003cbr\u003e\u003cstrong\u003eOrigin:\u003c\/strong\u003e Tanzania\u003cbr\u003e\u003cstrong\u003eTreatment:\u003c\/strong\u003e Heated (standard for tanzanite)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eOtzera 50:\u003c\/strong\u003e 36\/50 — Distinguished\u003cbr\u003e\u003cstrong\u003eFace-Up Performance:\u003c\/strong\u003e 83%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003cbr\u003eTanzanite is gently warmed after mining to bring out its blue-violet color. This has been standard practice since the gem was found in Tanzania in 1967, and it is how all tanzanite is valued. The color is permanent and stable and needs no special care.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eTanzanite is best suited to thoughtful wear. Clean with warm water, mild soap and a soft brush; avoid ultrasonic cleaning, sharp impacts and sudden temperature changes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51188425818359,"sku":"OTZ-2026-01666","price":895.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01666-tanzanite-replacement-1.jpg?v=1790472895"},{"product_id":"2-18-ct-nigerian-spessartite-garnet-precision-cut","title":"2.18 ct Nigerian Spessartite Garnet — Precision Cut","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eAn especially unusual spessartite, this 2.18 ct Nigerian garnet combines rich saturated red-orange color with crisp precision cutting and a loupe-clean appearance. Fresh from the cutter's wheel, the radiant outline and sharp facet pattern give the stone a vivid, graphic presence that stands apart from the more familiar bright orange expression of the variety.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eGemstone:\u003c\/strong\u003e Natural Spessartite Garnet\u003cbr\u003e\u003cstrong\u003eSpecies:\u003c\/strong\u003e Garnet\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.18 ct\u003cbr\u003e\u003cstrong\u003eShape \/ Cut:\u003c\/strong\u003e Precision Radiant Cut\u003cbr\u003e\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 7.96 × 5.99 × 4.42 mm\u003cbr\u003e\u003cstrong\u003eOrigin:\u003c\/strong\u003e Nigeria\u003cbr\u003e\u003cstrong\u003eTreatment:\u003c\/strong\u003e None\u003cbr\u003e\u003cstrong\u003eClarity:\u003c\/strong\u003e Loupe clean\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eOtzera 50:\u003c\/strong\u003e 38\/50 — Distinguished\u003cbr\u003e\u003cstrong\u003eFace-Up Performance:\u003c\/strong\u003e 78%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003cbr\u003eGarnet is one of the few gem families that is virtually never treated. Its color, brightness and clarity are exactly as nature made them.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eSpessartite garnet is suitable for jewelry wear with normal care. Clean with warm water, mild soap and a soft brush; avoid sharp impacts and harsh chemicals.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51188426211575,"sku":"OTZ-2026-01668","price":1250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01668-spessartite-garnet-1.jpg?v=1789856855"},{"product_id":"15-18-ct-natural-morganite-pear-cut","title":"15.18 ct Natural Morganite — Pear Cut","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA substantial 15.18 ct natural morganite with a graceful elongated pear silhouette and soft blush-peach color. Its generous size gives the stone real visual presence, while fine internal needles remain subtle to the unaided eye and add natural character under magnification.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone:\u003c\/strong\u003e Natural Morganite\u003cbr\u003e\n\u003cstrong\u003eSpecies:\u003c\/strong\u003e Beryl\u003cbr\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 15.18 ct\u003cbr\u003e\n\u003cstrong\u003eShape \/ Cut:\u003c\/strong\u003e Pear Modified Brilliant\u003cbr\u003e\n\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 24.74 × 14.74 × 8.23 mm\u003cbr\u003e\n\u003cstrong\u003eClarity:\u003c\/strong\u003e Fine loupe-visible needles; minor facet abrasion noted under close inspection\u003cbr\u003e\n\u003cstrong\u003eTreatment:\u003c\/strong\u003e Heated (standard for morganite)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOtzera 50:\u003c\/strong\u003e 39\/50 — Distinguished\u003cbr\u003e\n\u003cstrong\u003eFace-Up Performance:\u003c\/strong\u003e 80%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eMost morganite is gently heated to clear yellowish tones and refine its pink-to-peach color. The result is permanent and needs no special care.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMorganite is suitable for jewelry wear with sensible care. Clean with warm water, mild soap and a soft brush; avoid sharp impacts, harsh chemicals and sudden temperature changes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details, condition notes and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51188916257015,"sku":"OTZ-2026-01669","price":2890.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01669-morganite-1.jpg?v=1789874816"},{"product_id":"23-93-ct-golden-beryl-heliodor","title":"23.93 ct Golden Beryl — Heliodor","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA commanding 23.93 ct golden beryl with saturated golden-yellow color and exceptionally strong face-up performance. Precision manufacturing, excellent symmetry and lively brilliance give this large cushion a crisp, energetic appearance, while its scale makes it especially impressive as a collector stone.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone:\u003c\/strong\u003e Natural Golden Beryl (Heliodor)\u003cbr\u003e\n\u003cstrong\u003eSpecies:\u003c\/strong\u003e Beryl\u003cbr\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 23.93 ct\u003cbr\u003e\n\u003cstrong\u003eShape \/ Cut:\u003c\/strong\u003e Cushion Modified Brilliant\u003cbr\u003e\n\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 18.20 × 18.14 × 12.33 mm\u003cbr\u003e\n\u003cstrong\u003eClarity:\u003c\/strong\u003e Eye-visible fingerprint-style inclusions\u003cbr\u003e\n\u003cstrong\u003eTreatment:\u003c\/strong\u003e None\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOtzera 50:\u003c\/strong\u003e 40\/50 — Distinguished\u003cbr\u003e\n\u003cstrong\u003eFace-Up Performance:\u003c\/strong\u003e 90%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eGolden beryl is generally sold as mined; its warm color is natural.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBeryl is suitable for jewelry wear with sensible care. Clean with warm water, mild soap and a soft brush; avoid sharp impacts, harsh chemicals and sudden temperature changes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details, clarity observations and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51188916289783,"sku":"OTZ-2026-01670","price":3240.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01670-golden-beryl-heliodor-1.jpg?v=1789874840"},{"product_id":"11-26-ct-natural-nigerian-aquamarine","title":"11.26 ct Natural Nigerian Aquamarine","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eAn impressive 11.26 ct natural aquamarine from Nigeria with crisp oval modified brilliant cutting, strong brightness and an open, lively face-up presentation. Its attractive blue color, substantial size and well-balanced cut give the stone excellent presence while retaining a clean, elegant look.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003eGemstone: Natural Aquamarine\u003cbr\u003eSpecies: Beryl\u003cbr\u003eWeight: 11.26 ct\u003cbr\u003eShape \/ Cut: Oval Modified Brilliant\u003cbr\u003eMeasurements: 17.30 × 12.17 × 9.60 mm\u003cbr\u003eOrigin: Nigeria\u003cbr\u003eTreatment: Heated (standard for aquamarine)\u003cbr\u003eClarity: Loupe-visible needles and liquid inclusions\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003eOtzera 50: 40\/50 — Distinguished\u003cbr\u003eFace-Up Performance: 90%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003cbr\u003eMost aquamarine is gently heated to clear a faint green or yellow tint and leave a purer blue. The change is permanent and needs no special care.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eAquamarine is generally suitable for jewelry wear. Clean with warm water, mild soap and a soft brush; avoid harsh chemicals and sudden temperature changes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51211375247607,"sku":"OTZ-2026-01673","price":4950.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01673-nigerian-aquamarine-1_4981ac36-8c53-4c73-844e-acce4532343b.png?v=1790286144"},{"product_id":"2-77-ct-unheated-australian-parti-sapphire-radiant-cut","title":"2.77 ct Unheated Australian Parti Sapphire — Radiant Cut","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eA highly distinctive Australian parti-colored sapphire with deep rich blue, a concentrated yellow zone and flashes of green. The nearly square radiant cut is remarkably well made, giving the stone strong structure, crisp symmetry and lively optical performance while preserving its natural multi-color zoning.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003eGemstone: Natural Parti-Colored Sapphire\u003cbr\u003eSpecies: Corundum\u003cbr\u003eWeight: 2.77 ct\u003cbr\u003eShape \/ Cut: Radiant Cut\u003cbr\u003eMeasurements: 8.05 × 7.99 × 5.26 mm \u003cbr\u003eColor: Deep Blue, Yellow and Green Parti-Color\u003cbr\u003eOrigin: Australia\u003cbr\u003eTreatment: No Heat\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003eOtzera 50: \u003cstrong\u003e40 — Distinguished\u003c\/strong\u003e\u003cbr\u003eFace-Up Performance: 83%\u003cbr\u003eThe stone received particularly strong marks for cut and optical performance, reflecting its successful radiant-style faceting and balanced presentation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTreatment \u0026amp; Origin Disclosure\u003c\/strong\u003e\u003cbr\u003eThe current Otzera evaluation records Australian origin and no heat treatment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eSapphire is highly durable and suitable for jewelry wear. Clean with warm water, mild soap and a soft brush.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details, origin and treatment disclosures, and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51218158518519,"sku":"OTZ-2026-01697","price":4925.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01697-parti-sapphire-1.jpg?v=1790377050"},{"product_id":"2-94-ct-natural-color-shift-garnet","title":"2.94 ct Natural Color Shift Garnet","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eA distinctive natural garnet with an unusually expressive color response. Across the photographed lighting conditions, the stone moves from a vivid purplish-pink appearance into a deeper reddish-purple tone. At nearly three carats, it combines strong color personality with an attractive oval modified brilliant cut and substantial face-up presence.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003eGemstone: Natural Color Shift Garnet\u003cbr\u003eSpecies: Garnet\u003cbr\u003eWeight: 2.94 ct\u003cbr\u003eShape \/ Cut: Oval Modified Brilliant\u003cbr\u003eMeasurements: 9.49 × 7.72 × 5.31 mm\u003cbr\u003eClarity Character: Loupe-visible pavilion feather\u003cbr\u003eTreatment: None\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003eOtzera 50: \u003cstrong\u003e37 — Distinguished\u003c\/strong\u003e\u003cbr\u003eFace-Up Performance: 78%\u003cbr\u003eThe color-shift behavior adds meaningful collector interest within the garnet family.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003cbr\u003eGarnet is one of the few gem families that is virtually never treated. Its color, brightness and clarity are exactly as nature made them.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eClean with warm water, mild soap and a soft brush. Avoid sharp impacts and aggressive ultrasonic cleaning.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving the gemstone's identifying details and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51218379243767,"sku":"OTZ-2026-01698","price":2495.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01698-color-shift-garnet-1.png?v=1790377359"},{"product_id":"1-68-ct-blue-sapphire-round-brilliant-cut","title":"1.68 ct Blue Sapphire — Round Brilliant Cut","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eA lively 1.68 ct blue sapphire with a bright round brilliant presentation and strong face-up performance. The stone shows an attractive medium-to-deep blue appearance with hints of green visible from certain directions, while its round outline gives it a classic, highly wearable look.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003eGemstone: Natural Blue Sapphire\u003cbr\u003eSpecies: Corundum\u003cbr\u003eWeight: 1.68 ct\u003cbr\u003eShape \/ Cut: Round Brilliant Cut\u003cbr\u003eMeasurements: 7.03–7.00 × 4.60 mm\u003cbr\u003eColor: Blue with subtle green directional flashes\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003eOtzera 50: \u003cstrong\u003e35 — Distinguished\u003c\/strong\u003e\u003cbr\u003eFace-Up Performance: 90%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTreatment Disclosure\u003c\/strong\u003e\u003cbr\u003eHeat.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eSapphire is highly durable and suitable for jewelry wear. Clean with warm water, mild soap and a soft brush.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details, treatment disclosure and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51221585297655,"sku":"OTZ-2026-01701","price":1495.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01701-blue-sapphire-1.jpg?v=1790452526"},{"product_id":"2-58-ct-cognac-toned-grossular-garnet-precision-cut","title":"2.58 ct Cognac-Toned Grossular Garnet — Precision Cut","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eA beautifully manufactured grossular garnet with precision faceting and a distinctive orangish-brown, cognac-like color. The cutting is the standout feature: crisp symmetry, strong brightness and an 85% face-up performance index give this 2.58 ct stone an unusually polished presentation. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003eGemstone: Natural Grossular Garnet\u003cbr\u003eVariety: Grossular\u003cbr\u003eWeight: 2.58 ct\u003cbr\u003eShape \/ Cut: Oval Modified Brilliant\u003cbr\u003eMeasurements: 8.84 × 7.14 × 5.42 mm\u003cbr\u003eColor: Cognac-toned Orangish Brown\u003cbr\u003eTreatment: None\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003eOtzera 50: \u003cstrong\u003e38 — Distinguished\u003c\/strong\u003e\u003cbr\u003eFace-Up Performance: 85%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003cbr\u003eGarnet is one of the few gem families that is virtually never treated. Its color, brightness and clarity are exactly as nature made them.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eClean with warm water, mild soap and a soft brush. Avoid sharp impacts and harsh chemicals.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving the gemstone's identifying details and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51221803630839,"sku":"OTZ-2026-01708","price":1495.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01708-grossular-garnet-1_d6bdd910-a573-4121-aa2b-a25ef55ec0c5.jpg?v=1790472130"},{"product_id":"2-26-ct-pink-topaz-pear-modified-brilliant","title":"2.26 ct Pink Topaz — Pear Modified Brilliant","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eA vivid pink topaz with a lively pear modified brilliant cut and strong face-up presence. At 2.26 carats, the stone combines an attractive saturated pink appearance with a well-balanced pear outline and bright light return.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eGemstone:\u003c\/strong\u003e Pink Topaz\u003cbr\u003e\u003cstrong\u003eSpecies:\u003c\/strong\u003e Topaz\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.26 ct\u003cbr\u003e\u003cstrong\u003eShape \/ Cut:\u003c\/strong\u003e Pear Modified Brilliant\u003cbr\u003e\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 8.69 × 6.43 × 5.21 mm\u003cbr\u003e\u003cstrong\u003eColor:\u003c\/strong\u003e Bright Pink\u003cbr\u003e\u003cstrong\u003eTreatment:\u003c\/strong\u003e Heated (standard for pink topaz)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eOtzera 50:\u003c\/strong\u003e 36\/50 — Distinguished\u003cbr\u003e\u003cstrong\u003eFace-Up Performance:\u003c\/strong\u003e 78%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003cbr\u003ePink topaz is made by gently heating golden-orange topaz, a permanent change that needs no special care.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eTopaz should be protected from sharp impacts and sudden temperature changes. Clean with warm water, mild soap and a soft brush.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving the gemstone's identifying details and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51221877096695,"sku":"OTZ-2026-01674","price":1295.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01674-pink-topaz-1.jpg?v=1790462160"},{"product_id":"1-52-ct-grossular-andradite-garnet-precision-round","title":"1.52 ct Grossular-Andradite Garnet — Precision Round","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eA beautifully manufactured grossular-andradite garnet with a precision round modified brilliant cut. Strong golden color, crisp symmetry and abundant fire give this 1.52 ct stone an exceptionally lively appearance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eGemstone:\u003c\/strong\u003e Grossular-Andradite Garnet\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.52 ct\u003cbr\u003e\u003cstrong\u003eShape \/ Cut:\u003c\/strong\u003e Round Modified Brilliant\u003cbr\u003e\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 6.69–6.64 × 4.79 mm\u003cbr\u003e\u003cstrong\u003eColor:\u003c\/strong\u003e Golden Yellow\u003cbr\u003e\u003cstrong\u003eClarity:\u003c\/strong\u003e Loupe Clean\u003cbr\u003e\u003cstrong\u003eTreatment:\u003c\/strong\u003e None\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eOtzera 50:\u003c\/strong\u003e 38\/50 — Distinguished\u003cbr\u003e\u003cstrong\u003eFace-Up Performance:\u003c\/strong\u003e 83%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003cbr\u003eGarnet is one of the few gem families that is virtually never treated. Its color, brightness and clarity are exactly as nature made them.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eClean with warm water, mild soap and a soft brush. Avoid sharp impacts and harsh chemicals.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving the gemstone's identifying details and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51221877162231,"sku":"OTZ-2026-01676","price":1343.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01676-grossular-andradite-1.jpg?v=1790471712"},{"product_id":"1-25-ct-grossular-andradite-garnet-precision-radiant","title":"1.25 ct Grossular-Andradite Garnet — Precision Radiant","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eA precision-cut grossular-andradite garnet with a rich cognac-orange color and crisp radiant outline. The stone is very well manufactured, with strong face-up brightness and a clean, architectural presentation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eGemstone:\u003c\/strong\u003e Grossular-Andradite Garnet\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.25 ct\u003cbr\u003e\u003cstrong\u003eShape \/ Cut:\u003c\/strong\u003e Radiant\u003cbr\u003e\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 6.42 × 4.88 × 4.56 mm\u003cbr\u003e\u003cstrong\u003eColor:\u003c\/strong\u003e Cognac Orange-Brown\u003cbr\u003e\u003cstrong\u003eClarity:\u003c\/strong\u003e Loupe Clean\u003cbr\u003e\u003cstrong\u003eTreatment:\u003c\/strong\u003e None\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eOtzera 50:\u003c\/strong\u003e 36\/50 — Distinguished\u003cbr\u003e\u003cstrong\u003eFace-Up Performance:\u003c\/strong\u003e 78%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003cbr\u003eGarnet is one of the few gem families that is virtually never treated. Its color, brightness and clarity are exactly as nature made them.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eClean with warm water, mild soap and a soft brush. Avoid sharp impacts and harsh chemicals.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving the gemstone's identifying details and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51221877194999,"sku":"OTZ-2026-01677","price":1073.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01677-grossular-andradite-1.jpg?v=1790471756"},{"product_id":"1-85-ct-olive-grossular-andradite-garnet-trillion-cut","title":"1.85 ct Olive Grossular-Andradite Garnet — Trillion Cut","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eAn unusual olive green grossular-andradite garnet with a well-made trillion cut and exceptional face-up spread. The color shifts between yellow-green and olive tones, while the broad triangular outline gives the stone a distinctive collector character.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eGemstone:\u003c\/strong\u003e Grossular-Andradite Garnet\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.85 ct\u003cbr\u003e\u003cstrong\u003eShape \/ Cut:\u003c\/strong\u003e Trillion\u003cbr\u003e\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 7.79 × 7.67 × 5.01 mm\u003cbr\u003e\u003cstrong\u003eColor:\u003c\/strong\u003e Olive Yellow-Green\u003cbr\u003e\u003cstrong\u003eTreatment:\u003c\/strong\u003e None\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eOtzera 50:\u003c\/strong\u003e 38\/50 — Distinguished\u003cbr\u003e\u003cstrong\u003eFace-Up Performance:\u003c\/strong\u003e 93%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003cbr\u003eGarnet is one of the few gem families that is virtually never treated. Its color, brightness and clarity are exactly as nature made them.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eClean with warm water, mild soap and a soft brush. Avoid sharp impacts and harsh chemicals.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving the gemstone's identifying details and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51221877227767,"sku":"OTZ-2026-01678","price":1478.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01678-grossular-andradite-1.jpg?v=1790462194"},{"product_id":"1-29-ct-natural-ruby-round-mixed-cut","title":"1.29 ct Natural Ruby — Round Mixed Cut","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eA richly saturated natural ruby with a near-round mixed cut and strong face-up color. The shallow profile gives the 1.29 ct stone a broad visible spread, while the O50 evaluation reflects its attractive color and overall presentation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eGemstone:\u003c\/strong\u003e Natural Ruby\u003cbr\u003e\u003cstrong\u003eSpecies:\u003c\/strong\u003e Corundum\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.29 ct \u003cbr\u003e\u003cstrong\u003eShape \/ Cut:\u003c\/strong\u003e Round Mixed Cut\u003cbr\u003e\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 6.67–6.60 × 3.18 mm\u003cbr\u003e\u003cstrong\u003eColor:\u003c\/strong\u003e Rich Red\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eOtzera 50:\u003c\/strong\u003e 35\/50 — Distinguished\u003cbr\u003e\u003cstrong\u003eFace-Up Performance:\u003c\/strong\u003e 88%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003cbr\u003eHeat treatment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eRuby is highly durable and suitable for jewelry wear. Clean with warm water, mild soap and a soft brush.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving the gemstone's identifying details, treatment information and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51221882044663,"sku":"OTZ-2026-01682","price":1695.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01682-ruby-1.jpg?v=1790471657"},{"product_id":"0-78-ct-natural-ruby-geometric-modified-cut","title":"0.78 ct Natural Ruby — Geometric Modified Cut","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eA vivid natural ruby with an unusual geometric modified cut and strong red color. The distinctive outline gives this 0.78 ct stone a modern collector character, while its bright face-up appearance earned a Distinguished O50 classification.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eGemstone:\u003c\/strong\u003e Natural Ruby\u003cbr\u003e\u003cstrong\u003eSpecies:\u003c\/strong\u003e Corundum\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.78 ct\u003cbr\u003e\u003cstrong\u003eShape \/ Cut:\u003c\/strong\u003e Geometric Modified Cut\u003cbr\u003e\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 6.24 × 4.98 × 2.69 mm\u003cbr\u003e\u003cstrong\u003eColor:\u003c\/strong\u003e Vivid Red\u003cbr\u003e\u003cstrong\u003eClarity:\u003c\/strong\u003e Transparent with a prominent natural feather\/fingerprint visible face-up\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eOtzera 50:\u003c\/strong\u003e 35\/50 — Distinguished\u003cbr\u003e\u003cstrong\u003eFace-Up Performance:\u003c\/strong\u003e 80%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003cbr\u003eHeat treatment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eRuby is highly durable and suitable for jewelry wear. Clean with warm water, mild soap and a soft brush.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving the gemstone's identifying details, treatment information and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51221882274039,"sku":"OTZ-2026-01683","price":1195.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01683-ruby-1.jpg?v=1790471608"},{"product_id":"11-15-ct-pale-lilac-pink-kunzite-pear-modified-brilliant","title":"11.15 ct Pale Lilac-Pink Kunzite — Pear Modified Brilliant","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eA large, elegant kunzite with delicate lilac-pink color, excellent transparency and a lively pear modified brilliant cut. At over 11 carats, the stone has substantial presence while retaining a bright, graceful appearance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eGemstone:\u003c\/strong\u003e Kunzite\u003cbr\u003e\u003cstrong\u003eSpecies:\u003c\/strong\u003e Spodumene\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 11.15 ct\u003cbr\u003e\u003cstrong\u003eShape \/ Cut:\u003c\/strong\u003e Pear Modified Brilliant \u003cbr\u003e\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 17.40 × 10.37 × 9.57 mm\u003cbr\u003e\u003cstrong\u003eColor:\u003c\/strong\u003e Pale lilac-pink\u003cbr\u003e\u003cstrong\u003eClarity:\u003c\/strong\u003e Transparent with a couple of small internal needles\u003cbr\u003e\u003cstrong\u003eTreatment:\u003c\/strong\u003e None\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eOtzera 50:\u003c\/strong\u003e 38\/50 — Distinguished\u003cbr\u003e\u003cstrong\u003eFace-Up Performance:\u003c\/strong\u003e 78%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003cbr\u003eKunzite’s pale lilac-pink color is natural. Like all kunzite, it can slowly fade with long exposure to strong light, so it is best worn in the evening and stored away from sunlight.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eKunzite should be protected from hard knocks and prolonged strong light. Clean with warm water, mild soap and a soft brush; avoid ultrasonic and steam cleaning.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving the gemstone's identifying details and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51221946990839,"sku":"OTZ-2026-01681","price":1095.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01681-kunzite-1.jpg?v=1790471560"},{"product_id":"2-73-ct-unheated-blue-sapphire-gia-report","title":"2.73 ct Unheated Blue Sapphire — GIA Report","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eA 2.73 ct natural blue sapphire with an appealing antique cushion character and the added collector value of documented unheated status. The stone has a softly elongated cushion outline and a classic mixed cutting style that gives it an individual, vintage personality.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003eGemstone: Natural Blue Sapphire\u003cbr\u003eSpecies: Corundum\u003cbr\u003eWeight: 2.73 ct\u003cbr\u003eShape \/ Cut: Cushion Mixed Cut\u003cbr\u003eMeasurements: 8.94 × 6.90 × 5.15 mm\u003cbr\u003eColor: Blue\u003cbr\u003eTransparency: Transparent\u003cbr\u003eTreatment: No Indications of Heating\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003eOtzera 50: \u003cstrong\u003e35 — Distinguished\u003c\/strong\u003e\u003cbr\u003eFace-Up Performance: 78%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLaboratory Documentation\u003c\/strong\u003e\u003cbr\u003eAccompanied by GIA Sapphire Report No. 6194856137, dated November 27, 2018.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eSapphire is highly durable and suitable for jewelry wear. Clean with warm water, mild soap and a soft brush.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving the gemstone's identifying details, O50 evaluation and GIA documentation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51222638002423,"sku":"OTZ-2026-01719","price":4950.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01719-blue-sapphire-3.jpg?v=1790480762"},{"product_id":"1-71-ct-nigerian-pink-tourmaline-radiant-cut","title":"1.71 ct Nigerian Pink Tourmaline — Radiant Cut","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eA vivid pink Nigerian tourmaline with excellent saturation and a crisp radiant cut. At 1.71 carats, the stone combines strong color with an attractive near-square outline and lively face-up performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003eGemstone: Natural Pink Tourmaline\u003cbr\u003eSpecies: Tourmaline\u003cbr\u003eWeight: 1.71 ct\u003cbr\u003eShape \/ Cut: Radiant Cut\u003cbr\u003eMeasurements: 6.85 × 6.33 × 5.21 mm\u003cbr\u003eColor: Vivid Pink\u003cbr\u003eOrigin: Nigeria\u003cbr\u003eTreatment: None\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003eOtzera 50: \u003cstrong\u003e37 — Distinguished\u003c\/strong\u003e\u003cbr\u003eFace-Up Performance: 88%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003cbr\u003eTourmaline comes in more colors than almost any other gem, and this stone’s color is natural.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eTourmaline is suitable for jewelry wear with reasonable care. Clean with warm water, mild soap and a soft brush; avoid sharp impacts and sudden temperature changes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving the gemstone's identifying details, origin and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51222638625015,"sku":"OTZ-2026-01720","price":1095.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01720-pink-tourmaline-3.jpg?v=1790479902"},{"product_id":"3-26-ct-grossular-andradite-garnet-triangular-cut","title":"3.26 ct Grossular-Andradite Garnet — Triangular Cut","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eA substantial 3.26 ct grossular-andradite garnet with a bright yellow-green appearance and an unusual triangular modified brilliant cut. The stone has strong face-up spread, crisp faceting and the lively character that makes this garnet family particularly appealing in person.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003eGemstone: Natural Grossular-Andradite Garnet\u003cbr\u003eSpecies: Garnet\u003cbr\u003eWeight: 3.26 ct\u003cbr\u003eShape \/ Cut: Triangular Modified Brilliant\u003cbr\u003eMeasurements: 9.98 × 9.54 × 5.60 mm\u003cbr\u003eColor: Yellow-Green\u003cbr\u003eTreatment: None\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003eOtzera 50: \u003cstrong\u003e36 — Distinguished\u003c\/strong\u003e\u003cbr\u003eFace-Up Performance: 88%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003cbr\u003eGarnet is one of the few gem families that is virtually never treated. Its color, brightness and clarity are exactly as nature made them.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eClean with warm water, mild soap and a soft brush. Avoid sharp impacts and harsh chemicals.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003cbr\u003eAccompanied by an Otzera Digital Gem Passport preserving the gemstone's identifying details and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51222639083767,"sku":"OTZ-2026-01721","price":2495.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01721-grossular-andradite-garnet-1.jpg?v=1790479906"},{"product_id":"39-06-ct-aquamarine-emerald-cut","title":"39.06 ct Aquamarine — Emerald Cut","description":"\u003cp\u003e\u003cstrong\u003eCollector’s Note\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAn unusually substantial 39.06-carat aquamarine with a crisp emerald cut and cool, open blue appearance. Its exceptional scale gives this stone immediate presence while the step-cut geometry emphasizes its transparency and clean architectural form.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eGemstone: Aquamarine\u003cbr\u003eSpecies: Beryl\u003cbr\u003eWeight: 39.06 ct\u003cbr\u003eCut: Emerald Cut\u003cbr\u003eDimensions: 20.46 × 18.90 × 12.45 mm\u003cbr\u003eTreatment: Heated (standard for aquamarine)\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eO50 Score: 37\/50 — Distinguished\u003cbr\u003eFace-Up Performance: 70%\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eMost aquamarine is gently heated to clear a faint green or yellow tint and leave a purer blue. The change is permanent and needs no special care.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOtzera ID: OTZ-2026-01733\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51229570334967,"sku":"OTZ-2026-01733","price":6845.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01733-1_24939c3f-35b8-42b1-bb43-c447ed886017.jpg?v=1790650780"},{"product_id":"3-65-ct-grossular-garnet-cushion-modified-brilliant","title":"3.65 ct Grossular Garnet — Cushion Modified Brilliant","description":"\u003cp\u003e\u003cstrong\u003eCollector’s Note\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA lively 3.65-carat grossular garnet with a yellow-green appearance and strong face-up performance. The cushion modified brilliant cut produces an energetic pattern of reflections that complements the stone’s distinctive color.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eGemstone: Grossular Garnet\u003cbr\u003eWeight: 3.65 ct\u003cbr\u003eCut: Cushion Modified Brilliant\u003cbr\u003eDimensions: 9.87 × 7.85 × 5.55 mm\u003cbr\u003eTreatment: None\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eO50 Score: 35\/50 — Distinguished\u003cbr\u003eFace-Up Performance: 85%\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eGarnet is one of the few gem families that is virtually never treated. Its color, brightness and clarity are exactly as nature made them.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOtzera ID: OTZ-2026-01734\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51229570367735,"sku":"OTZ-2026-01734","price":1350.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01734-1.jpg?v=1792917309"},{"product_id":"1-48-ct-kenyan-tsavorite-sugarloaf-cabochon","title":"1.48 ct Kenyan Tsavorite — Sugarloaf Cabochon","description":"\u003cp\u003e\u003cstrong\u003eCollector’s Note\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA richly saturated Kenyan tsavorite fashioned as a compact sugarloaf cabochon. The smooth domed form concentrates its vivid green color and gives the 1.48-carat stone a distinctive collector-oriented presentation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eGemstone: Tsavorite\u003cbr\u003eSpecies: Grossular Garnet\u003cbr\u003eWeight: 1.48 ct\u003cbr\u003eCut: Sugarloaf Cabochon\u003cbr\u003eDimensions: 6.10 × 6.14 × 4.05 mm\u003cbr\u003eOrigin: Kenya\u003cbr\u003eTreatment: None\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eO50 Score: 35\/50 — Distinguished\u003cbr\u003eFace-Up Performance: 80%\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eGarnet is one of the few gem families that is virtually never treated. Its color, brightness and clarity are exactly as nature made them.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOtzera ID: OTZ-2026-01735\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51229570433271,"sku":"OTZ-2026-01735","price":1295.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/tsav-1.jpg?v=1792916655"},{"product_id":"13-82-ctw-raspberry-rhodolite-garnet-matched-pair","title":"13.82 ctw Raspberry Rhodolite Garnet Matched Pair","description":"\u003cp\u003e\u003cstrong\u003eCollector’s Note\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA particularly attractive matched pair of raspberry rhodolite garnets totaling 13.82 carats. Bright, vibrant color and a closely coordinated appearance make the pair especially appealing for a matched jewelry design or collection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eGemstone: Raspberry Rhodolite Garnet\u003cbr\u003eTotal Weight: 13.82 ctw\u003cbr\u003eConfiguration: Matched Pair\u003cbr\u003eCut: Cabochon\u003cbr\u003eDimensions: 13.05 × 9.15 × 5.42 mm\u003cbr\u003eTreatment: None\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eO50 Score: 35\/50 — Distinguished\u003cbr\u003eFace-Up Performance: 80%\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eGarnet is one of the few gem families that is virtually never treated. Its color, brightness and clarity are exactly as nature made them.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOtzera ID: OTZ-2026-01736\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51229570466039,"sku":"OTZ-2026-01736","price":1895.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01736-1.jpg?v=1790650419"},{"product_id":"4-05-ct-cambodian-blue-zircon-oval-mixed-cut","title":"4.05 ct Cambodian Blue Zircon — Oval Mixed Cut","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA vivid 4.05-carat Cambodian blue zircon with crisp brilliance, lively dispersion and a well-proportioned oval silhouette. Its saturated electric-blue appearance and strong face-up brightness give the stone immediate visual impact.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eGemstone: Blue Zircon\u003cbr\u003eWeight: 4.05 ct\u003cbr\u003eCut: Oval Mixed Cut\u003cbr\u003eMeasurements: 9.05 × 7.32 × 6.00 mm\u003cbr\u003eOrigin: Cambodia\u003cbr\u003eTreatment: Heated (standard for blue zircon)\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e35\/50 — Distinguished\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBlue zircon gets its color from gentle heating of brownish zircon crystals, a practice in Cambodia for generations. Nearly every blue zircon sold has been heated, and the color is stable in everyday wear. One tip: keep it away from tanning beds and UV nail lamps. Strong ultraviolet can give it a temporary brownish cast, which a short time under an ordinary incandescent bulb restores.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOTZ-2026-01738\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51229655433463,"sku":"OTZ-2026-01738","price":1295.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01738-1.jpg?v=1790633140"},{"product_id":"5-08-ct-cambodian-blue-zircon-oval-mixed-cut","title":"5.08 ct Cambodian Blue Zircon — Oval Mixed Cut","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA substantial 5.08-carat Cambodian blue zircon combining vivid blue color with strong brilliance and a broad, balanced oval face-up appearance. The larger size and energetic light return make this an especially appealing collector stone.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eGemstone: Blue Zircon\u003cbr\u003eWeight: 5.08 ct\u003cbr\u003eCut: Oval Mixed Cut\u003cbr\u003eMeasurements: 9.98 × 8.13 × 6.41 mm\u003cbr\u003eOrigin: Cambodia\u003cbr\u003eTreatment: Heated (standard for blue zircon)\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e35\/50 — Distinguished\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBlue zircon gets its color from gentle heating of brownish zircon crystals, a practice in Cambodia for generations. Nearly every blue zircon sold has been heated, and the color is stable in everyday wear. One tip: keep it away from tanning beds and UV nail lamps. Strong ultraviolet can give it a temporary brownish cast, which a short time under an ordinary incandescent bulb restores.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOTZ-2026-01740\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51229655531767,"sku":"OTZ-2026-01740","price":1595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01740-1.jpg?v=1790650707"},{"product_id":"6-04-ct-cambodian-blue-zircon-oval-mixed-cut","title":"6.04 ct Cambodian Blue Zircon — Oval Mixed Cut","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA striking 6.04-carat Cambodian blue zircon with vivid blue color, excellent brightness and the pronounced fire for which fine zircon is prized. Its substantial size, strong optical performance and balanced oval shape make it the standout of this group.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eGemstone: Blue Zircon\u003cbr\u003eWeight: 6.04 ct\u003cbr\u003eCut: Oval Mixed Cut\u003cbr\u003eMeasurements: 10.39 × 8.12 × 7.32 mm\u003cbr\u003eOrigin: Cambodia\u003cbr\u003eTreatment: Heated (standard for blue zircon)\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e37\/50 — Distinguished\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBlue zircon gets its color from gentle heating of brownish zircon crystals, a practice in Cambodia for generations. Nearly every blue zircon sold has been heated, and the color is stable in everyday wear. One tip: keep it away from tanning beds and UV nail lamps. Strong ultraviolet can give it a temporary brownish cast, which a short time under an ordinary incandescent bulb restores.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOTZ-2026-01741\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51229655564535,"sku":"OTZ-2026-01741","price":2095.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01741-1.jpg?v=1790633173"},{"product_id":"1-68-ct-grossular-garnet-oval-modified-brilliant","title":"1.68 ct Grossular Garnet — Oval Modified Brilliant","description":"\u003ch3\u003eCollector's Note\u003c\/h3\u003e\u003cp\u003eA lively 1.68 ct grossular garnet with a vivid yellow-green appearance and strong face-up brightness. Its oval modified brilliant cut produces an energetic pattern of reflections, while the color gives the stone a distinctive collector character.\u003c\/p\u003e\u003ch3\u003eGemstone Details\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eGemstone:\u003c\/strong\u003e Natural Grossular Garnet\u003cbr\u003e\u003cstrong\u003eSpecies:\u003c\/strong\u003e Grossular Garnet\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.68 ct\u003cbr\u003e\u003cstrong\u003eShape \/ Cut:\u003c\/strong\u003e Oval Modified Brilliant\u003cbr\u003e\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 7.97 × 6.40 × 4.32 mm\u003cbr\u003e\u003cstrong\u003eTreatment:\u003c\/strong\u003e None\u003c\/p\u003e\u003ch3\u003eO50 Collector Evaluation\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eOtzera 50:\u003c\/strong\u003e 35 — Distinguished\u003cbr\u003e\u003cstrong\u003eFace-Up Performance:\u003c\/strong\u003e 80%\u003c\/p\u003e\u003ch3\u003eTreatment\u003c\/h3\u003e\u003cp\u003eGarnet is one of the few gem families that is virtually never treated. Its color, brightness and clarity are exactly as nature made them.\u003c\/p\u003e\u003ch3\u003eCare \u0026amp; Setting\u003c\/h3\u003e\u003cp\u003eClean with warm water, mild soap and a soft brush. Avoid hard impacts and abrupt temperature changes.\u003c\/p\u003e\u003ch3\u003eDigital Gem Passport\u003c\/h3\u003e\u003cp\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51231738364151,"sku":"OTZ-2026-01724","price":795.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01724-grossular-garnet-1.jpg?v=1790701828"},{"product_id":"4-35-ct-yellow-tourmaline-round-modified-brilliant","title":"4.35 ct Yellow Tourmaline — Round Modified Brilliant","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA precisely fashioned 4.35 ct yellow tourmaline with an unusual warm champagne-gold color and a highly symmetrical round modified brilliant cut. The precision manufacturing and uncommon color expression give this stone a particularly refined collector presence.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eGemstone: Yellow Tourmaline\u003cbr\u003eSpecies: Tourmaline\u003cbr\u003eWeight: 4.35 ct\u003cbr\u003eShape \/ Cut: Round Modified Brilliant\u003cbr\u003eMeasurements: 9.68–9.62 × 7.47 mm\u003cbr\u003eTreatment: None\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOtzera 50: 38\/50 — Distinguished\u003cbr\u003eFace-Up Performance: 85%\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eTourmaline comes in more colors than almost any other gem, and this stone’s color is natural.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eClean with warm water, mild soap and a soft brush. Avoid sharp impacts, steam cleaning and sudden temperature changes.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51231836602615,"sku":"OTZ-2026-01726","price":995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01726-1.jpg?v=1790698863"},{"product_id":"8-20-ct-cambodian-blue-zircon-oval-mixed-cut","title":"8.20 ct Cambodian Blue Zircon — Oval Mixed Cut","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA substantial 8.20 ct Cambodian blue zircon with bright cyan-blue color, strong brilliance and the lively optical character for which fine zircon is prized. Its generous size and balanced oval presentation give it notable collector presence.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eGemstone: Blue Zircon\u003cbr\u003eSpecies: Zircon\u003cbr\u003eWeight: 8.20 ct\u003cbr\u003eShape \/ Cut: Oval Mixed Cut\u003cbr\u003eMeasurements: 13.57 × 9.25 × 6.75 mm\u003cbr\u003eOrigin: Cambodia\u003cbr\u003eTreatment: Heated (standard for blue zircon)\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOtzera 50: 40\/50 — Distinguished\u003cbr\u003eFace-Up Performance: 88%\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBlue zircon gets its color from gentle heating of brownish zircon crystals, a practice in Cambodia for generations. Nearly every blue zircon sold has been heated, and the color is stable in everyday wear. One tip: keep it away from tanning beds and UV nail lamps. Strong ultraviolet can give it a temporary brownish cast, which a short time under an ordinary incandescent bulb restores.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eZircon can be brittle despite its excellent brilliance. Clean with warm water, mild soap and a soft brush; avoid ultrasonic or steam cleaning and protect the stone from sharp impacts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details, origin and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51233274495223,"sku":"OTZ-2026-01742","price":2870.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01742-1.jpg?v=1790712059"},{"product_id":"2-68-ct-mexican-fire-opal-oval-cabochon-brilliant-hybrid","title":"2.68 ct Mexican Fire Opal — Oval Cabochon-Brilliant Hybrid","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA lively 2.68 ct Mexican fire opal with a distinctive hybrid cutting style: a smoothly polished cabochon-style crown over a brilliant-cut pavilion. The result is an unusual combination of glowing bodycolor and internal light return that gives this stone a strong individual character.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eGemstone: Fire Opal\u003cbr\u003eSpecies: Opal\u003cbr\u003eWeight: 2.68 ct\u003cbr\u003eShape \/ Cut: Oval Cabochon-Brilliant Hybrid\u003cbr\u003eMeasurements: 11.11 × 9.16 × 6.50 mm\u003cbr\u003eOrigin: Mexico\u003cbr\u003eTreatment: None\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOtzera 50: 40\/50 — Distinguished\u003cbr\u003eFace-Up Performance: 90%\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eMexican fire opal is not treated; its glowing body color is natural.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOpal requires gentle care. Clean with a soft damp cloth or mild soapy water; avoid ultrasonic or steam cleaning, harsh chemicals, prolonged heat and sudden temperature changes.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details, origin and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51234302427383,"sku":"OTZ-2026-01747","price":2500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01747-1.jpg?v=1790737044"},{"product_id":"1-80-ct-mexican-fire-opal-triangular-modified-brilliant","title":"1.80 ct Mexican Fire Opal — Triangular Modified Brilliant","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA vivid 1.80 ct Mexican fire opal with saturated orange color and an uncommon triangular modified brilliant cut. Strong face-up brightness gives the stone energetic visual appeal, while a small eye-visible feather is present and disclosed in the clarity description.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eGemstone: Fire Opal\u003cbr\u003eSpecies: Opal\u003cbr\u003eWeight: 1.80 ct\u003cbr\u003eShape \/ Cut: Triangular Modified Brilliant\u003cbr\u003eMeasurements: 9.12 × 9.02 × 6.54 mm\u003cbr\u003eOrigin: Mexico\u003cbr\u003eTreatment: None\u003cbr\u003eClarity: Small eye-visible feather\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOtzera 50: 36\/50 — Distinguished\u003cbr\u003eFace-Up Performance: 88%\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eMexican fire opal is not treated; its glowing body color is natural.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOpal requires gentle care. Clean with a soft damp cloth or mild soapy water; avoid ultrasonic or steam cleaning, harsh chemicals, prolonged heat and sudden temperature changes.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details, origin, clarity observation and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51234302460151,"sku":"OTZ-2026-01748","price":1575.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01748-1.jpg?v=1790737054"},{"product_id":"4-53-ct-mexican-fire-opal-pear-modified-brilliant","title":"4.53 ct Mexican Fire Opal — Pear Modified Brilliant","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA bright 4.53 ct Mexican fire opal with rich orange bodycolor and an elongated pear modified brilliant cut. Strong transparency and lively face-up performance give the stone a clean, elegant presentation with substantial collector presence.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eGemstone: Fire Opal\u003cbr\u003eSpecies: Opal\u003cbr\u003eWeight: 4.53 ct\u003cbr\u003eShape \/ Cut: Pear Modified Brilliant\u003cbr\u003eMeasurements: 15.42 × 11.39 × 7.10 mm\u003cbr\u003eOrigin: Mexico\u003cbr\u003eTreatment: None\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOtzera 50: 39\/50 — Distinguished\u003cbr\u003eFace-Up Performance: 85%\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTreatment\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eMexican fire opal is not treated; its glowing body color is natural.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOpal requires gentle care. Clean with a soft damp cloth or mild soapy water; avoid ultrasonic or steam cleaning, harsh chemicals, prolonged heat and sudden temperature changes.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details, origin and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51234302492919,"sku":"OTZ-2026-01749","price":3225.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01749-1.jpg?v=1790737064"}],"url":"https:\/\/otzera.com\/collections\/o50-distinguished.oembed?page=2","provider":"Otzera","version":"1.0","type":"link"}