{"title":"Otzera Rated Gemstones","description":"\u003cp\u003eExplore gemstones evaluated through the Otzera 1–50 rating system. Each score reflects a gemologist’s considered assessment of the stone’s beauty, rarity, quality and collector appeal, presented in a clear format designed for collectors and enthusiasts.\u003c\/p\u003e\u003cp\u003eThe Otzera rating is an expert opinion intended to make gemstone comparison more approachable. Full grading details and important disclosures accompany each listed stone.\u003c\/p\u003e","products":[{"product_id":"sapphire-otz-2026-01625","title":"2.14 ct Blue Sapphire","description":"\u003cp\u003eCool steel-blue color gives this 2.14 ct sapphire a distinctive, understated character. The stone is relatively clean to the eye and offers a substantial size at over two carats. Its cushion mixed cut shows a moderate window and some asymmetry, which are reflected in its Otzera 50 evaluation rather than hidden from view.\u003c\/p\u003e\n\n\u003cp\u003eHeat treatment is present, a standard and widely accepted practice for sapphire. For a collector, the appeal here is the combination of size, clean appearance and an unusual blue tone rather than precision cutting.\u003c\/p\u003e\n\n\u003cp\u003eOtzera 50: 28\/50 — Collectible\u003cbr\u003e\nWeight: 2.14 ct\u003cbr\u003e\nDimensions: 7.65 × 6.68 × 4.73 mm\u003cbr\u003e\nTreatment: Heat\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51034350289143,"sku":"OTZ-2026-01625","price":749.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01625-d.jpg?v=1786957880"},{"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\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51034350354679,"sku":"OTZ-2026-01626","price":825.0,"currency_code":"USD","in_stock":true}],"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":true}],"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","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51034350420215,"sku":"OTZ-2026-01628","price":965.0,"currency_code":"USD","in_stock":true}],"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\u003eVivid red color with a subtle pink modifier and exceptional brightness make this 1.63 ct spinel an immediately striking stone. Its oval mixed cut shows very little windowing or extinction, producing strong brilliance across the face of the gem.\u003c\/p\u003e\n\n\u003cp\u003eThe main clarity feature is a cluster of eye-visible crystals through the table. Rather than appearing strongly contrasting, the inclusions sit close to the body color and give the stone a distinctive natural character. At this size, the combination of color and brilliance is the primary collector appeal.\u003c\/p\u003e\n\n\u003cp\u003eThe stone was represented to us as Vietnamese, but that origin has not been independently verified and is therefore not reflected in its Otzera score.\u003c\/p\u003e\n\n\u003cp\u003eOtzera 50: 40\/50 — Distinguished\u003cbr\u003e\nFace-Up Performance: 93%\u003cbr\u003e\nWeight: 1.63 ct\u003cbr\u003e\nDimensions: 8.01 × 6.08 × 4.07 mm\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51034350452983,"sku":"OTZ-2026-01629","price":2450.0,"currency_code":"USD","in_stock":true}],"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\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51040489570551,"sku":"OTZ-2026-01630","price":975.0,"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\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\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, putting each comfortably over one carat, and their closely matched table sizes and proportions make them especially well suited as a pair.\u003c\/p\u003e\n\n\u003cp\u003eThe stones show lively face-up performance with only minor differences in spread. Surface wear is present, including chips and abrasions along some facet junctions, primarily on the pavilion, and this is reflected in the Otzera evaluation rather than hidden from view.\u003c\/p\u003e\n\n\u003cp\u003eFor a collector or jewelry project, the strongest combination is the saturated green color, substantial individual sizes and the difficulty of finding well-matched tsavorite pairs of this quality.\u003c\/p\u003e\n\n\u003cp\u003eOtzera 50: 38\/50 — Distinguished\u003cbr\u003e\nTotal weight: 2.14 ctw (1.12 ct + 1.02 ct)\u003cbr\u003e\nApprox. dimensions: 6.7–7.0 × 5.0 × 3.1–3.4 mm\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":"amethyst-otz-2026-01633","title":"9.42 ctw Custom-Cut Amethyst Pair","description":"\u003cp\u003eRich purple color and an unusual architectural cut give this 9.42 ctw matched pair of amethysts a distinctive character. The stones weigh 4.73 and 4.69 ct and are closely matched in size, making the pair well suited for a coordinated jewelry design or gemstone collection.\u003c\/p\u003e\n\n\u003cp\u003eTheir custom shape combines a high, cabochon-like dome with numerous square and step-style facets, creating a checkerboard effect that looks very different from a conventional amethyst cut. The result is playful, sculptural and highly individual.\u003c\/p\u003e\n\n\u003cp\u003eOne stone has a couple of moderate chips on the bottom. These are disclosed here and reflected in the Otzera evaluation rather than hidden from view.\u003c\/p\u003e\n\n\u003cp\u003eOtzera 50: 34\/50 — Collectible\u003cbr\u003e\nFace-Up Performance: 85%\u003cbr\u003e\nTotal weight: 9.42 ctw (4.73 ct + 4.69 ct)\u003cbr\u003e\nApprox. dimensions: 11.6–11.8 × 7.8 × 7.0–7.1 mm\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51040489996535,"sku":"OTZ-2026-01633","price":499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01633-a.jpg?v=1787066744"},{"product_id":"almandite-otz-2026-01634","title":"9.51 ctw Custom-Cut Almandite Garnet Pair","description":"\u003cp\u003eDeep wine-red color and a highly unusual custom shape give this 9.51 ctw matched pair of almandite garnets strong collector character. The stones weigh 4.86 and 4.65 ct and are closely matched in size, with a distinctive four-point silhouette that immediately sets them apart from standard garnet cuts.\u003c\/p\u003e\n\n\u003cp\u003eCheckerboard-style faceting across the crown is paired with a brilliant-cut pavilion, creating flashes of red as the stones move. Their naturally deep tone also produces some areas of extinction and limits overall brightness, which is reflected in the Otzera evaluation. Minor crystals and needles are present but do not define the face-up appearance.\u003c\/p\u003e\n\n\u003cp\u003eFor a collector or jewelry project, the appeal is the combination of substantial size, close matching and a one-of-a-kind custom cut that would translate especially well into a dramatic pair of earrings.\u003c\/p\u003e\n\n\u003cp\u003eOtzera 50: 31\/50 — Collectible\u003cbr\u003e\nFace-Up Performance: 63%\u003cbr\u003e\nTotal weight: 9.51 ctw (4.86 ct + 4.65 ct)\u003cbr\u003e\nApprox. dimensions: 9.8–10.0 × 9.7–9.8 × 5.2–5.6 mm\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51040490094839,"sku":"OTZ-2026-01634","price":499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01634-d.jpg?v=1787066635"},{"product_id":"23-58-ct-natural-pink-tourmaline","title":"23.58 ct Natural Pink Tourmaline","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eExceptional size and vibrant pink color give this 23.58 ct natural tourmaline immediate presence. Its cushion modified brilliant cut has a broad, well-proportioned outline with strong symmetry and lively light return, while the stone presents eye-clean to the unaided eye.\u003c\/p\u003e\u003cp\u003eThe combination of rich color, clarity, impressive size and energetic face-up performance makes this a standout collector gemstone and a dramatic candidate for a one-of-a-kind jewelry design.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSpecies: Tourmaline\u003c\/li\u003e\n\u003cli\u003eWeight: 23.58 ct\u003c\/li\u003e\n\u003cli\u003eShape \/ Cut: Cushion Modified Brilliant\u003c\/li\u003e\n\u003cli\u003eDimensions: 18.68 × 17.14 × 11.91 mm\u003c\/li\u003e\n\u003cli\u003eColor: Vibrant Pink\u003c\/li\u003e\n\u003cli\u003eTransparency \/ Clarity: Transparent \/ Eye-clean\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOtzera 50: \u003cstrong\u003e41\/50 — Signature\u003c\/strong\u003e\u003cbr\u003eFace-Up Performance Index: \u003cstrong\u003e85%\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTreatment \u0026amp; Origin\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eTreatment and geographic origin are not stated in the current evaluation record.\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 or aggressive ultrasonic cleaning unless first examined by a qualified jeweler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOtzera ID: OTZ-2026-01635\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51135147213047,"sku":"OTZ-2026-01635","price":8050.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01635-d_fa30f4b4-e78d-4f9c-bae4-b678f7924bcc.jpg?v=1788979345"},{"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\u003c\/p\u003e\u003cp\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.\u003c\/p\u003e\u003cp\u003eMerelani 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\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSpecies: Garnet\u003c\/li\u003e\n\u003cli\u003eVariety: Grossularite Garnet\u003c\/li\u003e\n\u003cli\u003eWeight: 1.70 ct\u003c\/li\u003e\n\u003cli\u003eShape \/ Cut: Round Modified Brilliant\u003c\/li\u003e\n\u003cli\u003eDimensions: 7.02–7.12 × 5.11 mm\u003c\/li\u003e\n\u003cli\u003eColor: Pastel Green\u003c\/li\u003e\n\u003cli\u003eTransparency \/ Clarity: Transparent \/ Lightly Included\u003c\/li\u003e\n\u003cli\u003eOrigin: Merelani Hills of Tanzania\u003c\/li\u003e\n\u003cli\u003eTreatment: None\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOtzera 50: \u003cstrong\u003e40\/50 — Distinguished\u003c\/strong\u003e\u003cbr\u003eFace-Up Performance Index: \u003cstrong\u003e83%\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTreatment \u0026amp; Origin\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOrigin recorded as the Merelani Hills of Tanzania. No treatment is indicated in the evaluation record.\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 or aggressive ultrasonic cleaning unless first examined by a qualified jeweler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003c\/p\u003e\u003cp\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=1788979171"},{"product_id":"11-43-ctw-natural-yellow-zircon-pair","title":"11.43 ctw Matched Natural Yellow Zircon Pair","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eA luscious matched pair of natural yellow zircons, weighing 5.77 and 5.66 carats respectively. Rich golden-yellow color, lively brilliance and close matching give the pair immediate presence.\u003c\/p\u003e\u003cp\u003eZircon is a distinct natural gemstone, despite the common confusion created by its name. This pair shows exactly why it deserves greater recognition: vibrant color, energetic sparkle, impressive size and two stones that work beautifully together as a collector pair or for a significant jewelry project.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSpecies: Zircon\u003c\/li\u003e\n\u003cli\u003eVariety: Natural Yellow Zircon\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 11.43 ctw\u003c\/li\u003e\n\u003cli\u003eIndividual Weights: 5.77 ct + 5.66 ct\u003c\/li\u003e\n\u003cli\u003eShape \/ Cut: Round Modified Brilliant\u003c\/li\u003e\n\u003cli\u003eApprox. Dimensions: 9.20–9.51 × 6.72–7.21 mm\u003c\/li\u003e\n\u003cli\u003eColor: Deep Vivid Yellow\u003c\/li\u003e\n\u003cli\u003eTransparency \/ Clarity: Transparent \/ Eye-clean\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOtzera 50: \u003cstrong\u003e41\/50 — Signature\u003c\/strong\u003e\u003cbr\u003eFace-Up Performance Index: \u003cstrong\u003e95%\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTreatment \u0026amp; Origin\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eTreatment and geographic origin are not stated in the current evaluation record.\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 or aggressive ultrasonic cleaning unless first examined by a qualified jeweler.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDigital Gem Passport\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eOtzera ID: OTZ-2026-01637\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51135147442423,"sku":"OTZ-2026-01637","price":2475.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/YellowZircon1.png?v=1788984929"},{"product_id":"2-22-ct-natural-andradite-garnet","title":"2.22 ct Olive Andradite Garnet","description":"\u003ch3\u003eCollector's Note\u003c\/h3\u003e\u003cp\u003eAn unusual mix of olive-green color with subtle orange and golden flashes gives this 2.22 ct garnet its personality. As the stone is rocked and tilted in sunlight, the shifting secondary hues add warmth and movement beyond its dominant olive appearance.\u003c\/p\u003e\u003ch3\u003eGemstone Details\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eGemstone:\u003c\/strong\u003e Natural Andradite Garnet\u003cbr\u003e\u003cstrong\u003eSpecies \/ Variety:\u003c\/strong\u003e Andradite Garnet\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.22 ct\u003cbr\u003e\u003cstrong\u003eShape \/ Cut:\u003c\/strong\u003e Oval Modified Brilliant\u003cbr\u003e\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 8.68 x 6.81 x 4.96 mm\u003c\/p\u003e\u003ch3\u003eO50 Collector Evaluation\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eOtzera 50:\u003c\/strong\u003e 32\/50 — Collectible\u003cbr\u003e\u003cstrong\u003eFace-Up Performance:\u003c\/strong\u003e 80%\u003c\/p\u003e\u003ch3\u003eTreatment \u0026amp; Origin Disclosure\u003c\/h3\u003e\u003cp\u003eNo treatment or geographic origin is documented in the current Otzera record.\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":51137216512247,"sku":"OTZ-2026-01641","price":928.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01641-andradite-garnet-3.png?v=1789009244"},{"product_id":"2-32-ct-natural-green-sapphire","title":"2.32 ct Green Round Brilliant Sapphire","description":"\u003ch3\u003eCollector's Note\u003c\/h3\u003e\u003cp\u003eThis 2.32 ct sapphire is defined by its unusually clean appearance and precise round brilliant cutting. Its body color is predominantly green, with a subtle blue influence visible from certain angles, giving the stone a distinctive and shifting face-up character.\u003c\/p\u003e\u003ch3\u003eGemstone Details\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eGemstone:\u003c\/strong\u003e Natural Green Sapphire\u003cbr\u003e\u003cstrong\u003eSpecies:\u003c\/strong\u003e Corundum\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.32 ct\u003cbr\u003e\u003cstrong\u003eShape \/ Cut:\u003c\/strong\u003e Round Brilliant\u003cbr\u003e\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 7.70-7.76 x 5.05 mm\u003cbr\u003e\u003cstrong\u003eTreatment:\u003c\/strong\u003e Heat\u003c\/p\u003e\u003ch3\u003eO50 Collector Evaluation\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eOtzera 50:\u003c\/strong\u003e 33\/50 — Collectible\u003cbr\u003e\u003cstrong\u003eFace-Up Performance:\u003c\/strong\u003e 75%\u003c\/p\u003e\u003ch3\u003eTreatment \u0026amp; Origin Disclosure\u003c\/h3\u003e\u003cp\u003eHeat treatment is documented in the current Otzera record. Geographic origin is not recorded.\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":51137217167607,"sku":"OTZ-2026-01640","price":890.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01640-green-sapphire-4.png?v=1789009101"},{"product_id":"1-57-ct-natural-purple-sapphire","title":"1.57 ct Unheated Sri Lankan Purple Sapphire","description":"\u003ch3\u003eCollector's Note\u003c\/h3\u003e\n\u003cp\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\u003ch3\u003eGemstone Details\u003c\/h3\u003e\n\u003cp\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 x 6.36 x 4.09 mm\u003cbr\u003e\u003cstrong\u003eOrigin:\u003c\/strong\u003e Sri Lanka\u003cbr\u003e\u003cstrong\u003eTreatment:\u003c\/strong\u003e None\u003c\/p\u003e\n\u003ch3\u003eO50 Collector Evaluation\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eOtzera 50:\u003c\/strong\u003e 37\/50 — Distinguished\u003cbr\u003e\u003cstrong\u003eFace-Up Performance:\u003c\/strong\u003e 75%\u003c\/p\u003e\n\u003ch3\u003eTreatment \u0026amp; Origin Disclosure\u003c\/h3\u003e\n\u003cp\u003eThe current Otzera record identifies this sapphire as originating from Sri Lanka and lists no treatment.\u003c\/p\u003e\n\u003ch3\u003eDigital Gem Passport\u003c\/h3\u003e\n\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":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\u003eCollector's Note\u003cbr\u003e\nAt 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\n\u003cp\u003eGemstone Details\u003cbr\u003e\nGemstone: Natural Aquamarine\u003cbr\u003e\nSpecies: Beryl\u003cbr\u003e\nWeight: 9.05 ct\u003cbr\u003e\nShape \/ Cut: Cushion Modified Brilliant\u003cbr\u003e\nMeasurements: 15.52 x 11.70 x 8.34 mm\u003cbr\u003e\nOrigin: Nigeria\u003c\/p\u003e\n\n\u003cp\u003eO50 Collector Evaluation\u003cbr\u003e\nOtzera 50: 37\/50 — Distinguished\u003cbr\u003e\nFace-Up Performance: 68%\u003c\/p\u003e\n\n\u003cp\u003eTreatment \u0026amp; Origin Disclosure\u003cbr\u003e\nOrigin is recorded as Nigeria. No treatment information is documented in the current Otzera record.\u003c\/p\u003e\n\n\u003cp\u003eCare \u0026amp; Setting\u003cbr\u003e\nAquamarine 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\n\u003cp\u003eDigital Gem Passport\u003cbr\u003e\nAccompanied 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\u003eCollector's Note\u003cbr\u003e\nA 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\n\n\u003cp\u003eGemstone Details\u003cbr\u003e\nGemstone: Natural Emerald\u003cbr\u003e\nSpecies: Natural Beryl\u003cbr\u003e\nWeight: 2.94 ct\u003cbr\u003e\nShape: Cushion\u003cbr\u003e\nCutting Style: Brilliant Cut crown \/ Modified Brilliant Cut pavilion\u003cbr\u003e\nMeasurements: 8.86 x 8.57 x 6.36 mm\u003cbr\u003e\nColor: Green\u003cbr\u003e\nTransparency: Transparent\u003cbr\u003e\nGeographic Origin: Colombia\u003c\/p\u003e\n\n\u003cp\u003eO50 Collector Evaluation\u003cbr\u003e\nOtzera 50: 38\/50 — Distinguished\u003cbr\u003e\nFace-Up Performance: 85%\u003c\/p\u003e\n\n\u003cp\u003eTreatment \u0026amp; Origin Disclosure\u003cbr\u003e\nGIA determined the stone to be of Colombian origin and identified Minor Clarity Enhancement (F1).\u003c\/p\u003e\n\n\u003cp\u003eLaboratory Documentation\u003cbr\u003e\nAccompanied by GIA Emerald Origin Report No. 5192634252, dated September 10, 2018.\u003c\/p\u003e\n\n\u003cp\u003eCare \u0026amp; Setting\u003cbr\u003e\nEmeralds 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\n\n\u003cp\u003eDigital Gem Passport\u003cbr\u003e\nAccompanied 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-2.png?v=1788987871"},{"product_id":"red-spinel-otz-2026-01643","title":"2.13 ct Natural Red Spinel","description":"\u003cp\u003eCollector's Note\u003cbr\u003e\nA natural 2.13 ct red spinel with a deep red appearance and classic oval outline. Offered with no treatment indicated in the Otzera record, it is a straightforward natural example of one of the gemstone world's most recognizable red collector materials.\u003c\/p\u003e\n\n\u003cp\u003eGemstone Details\u003cbr\u003e\nGemstone: Natural Red Spinel\u003cbr\u003e\nSpecies: Natural Spinel\u003cbr\u003e\nWeight: 2.13 ct\u003cbr\u003e\nShape \/ Cut: Oval Mixed Cut\u003cbr\u003e\nMeasurements: 9.93 x 7.24 x 3.97 mm\u003c\/p\u003e\n\n\u003cp\u003eO50 Collector Evaluation\u003cbr\u003e\nOtzera 50: 27\/50 — Discovery\u003cbr\u003e\nFace-Up Performance: 55%\u003c\/p\u003e\n\n\u003cp\u003eTreatment \u0026amp; Origin Disclosure\u003cbr\u003e\nTreatment: None\u003cbr\u003e\nGeographic origin is not documented in the current Otzera record.\u003c\/p\u003e\n\n\u003cp\u003eCare \u0026amp; Setting\u003cbr\u003e\nSpinel 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\n\u003cp\u003eDigital Gem Passport\u003cbr\u003e\nAccompanied 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":51138651291895,"sku":"OTZ-2026-01643","price":1225.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01643-red-spinel-4.jpg?v=1789007958"},{"product_id":"red-spinel-otz-2026-01645","title":"0.79 ct Myanmar Red Spinel","description":"\u003cp\u003eCollector's Note\u003cbr\u003e\nA compact natural red spinel with strong color and lively face-up return. At 0.79 ct, its oval mixed cut balances brightness with a rich red appearance, while the current Otzera record lists Myanmar (Burma) as its origin and no treatment.\u003c\/p\u003e\n\n\u003cp\u003eGemstone Details\u003cbr\u003e\nGemstone: Natural Red Spinel\u003cbr\u003e\nSpecies: Natural Spinel\u003cbr\u003e\nWeight: 0.79 ct\u003cbr\u003e\nShape \/ Cut: Oval Mixed Cut\u003cbr\u003e\nMeasurements: 5.93 x 5.11 x 3.77 mm\u003cbr\u003e\nOrigin: Myanmar (Burma)\u003cbr\u003e\nTreatment: None\u003c\/p\u003e\n\n\u003cp\u003eO50 Collector Evaluation\u003cbr\u003e\nOtzera 50: 34\/50 — Collectible\u003cbr\u003e\nFace-Up Performance: 80%\u003c\/p\u003e\n\n\u003cp\u003eTreatment \u0026amp; Origin Disclosure\u003cbr\u003e\nThe current Otzera record lists Myanmar (Burma) as the geographic origin and no treatment. No independent laboratory report is recorded for this stone.\u003c\/p\u003e\n\n\u003cp\u003eCare \u0026amp; Setting\u003cbr\u003e\nSpinel 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\n\u003cp\u003eDigital Gem Passport\u003cbr\u003e\nAccompanied 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":51150481555703,"sku":"OTZ-2026-01645","price":1190.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01645-red-spinel-1.jpg?v=1789159330"},{"product_id":"blue-green-otz-2026-01646","title":"2.98 ct Namibian Blue-Green Tourmaline","description":"\u003cp\u003eCollector's Note\u003cbr\u003e\nA nearly three-carat natural tourmaline with a saturated blue-green appearance and an unusual buff-top cutting style. Its oval outline carries broad flashes of green and teal as the stone moves, while the 2.98 ct size gives it strong visual presence.\u003c\/p\u003e\n\n\u003cp\u003eGemstone Details\u003cbr\u003e\nGemstone: Natural Blue-Green Tourmaline\u003cbr\u003e\nSpecies: Natural Tourmaline\u003cbr\u003e\nWeight: 2.98 ct\u003cbr\u003e\nShape \/ Cut: Oval Buff Top Modified Brilliant Cut\u003cbr\u003e\nMeasurements: 10.00 x 8.47 x 5.87 mm\u003cbr\u003e\nOrigin: Namibia\u003cbr\u003e\nTreatment: Not documented\u003c\/p\u003e\n\n\u003cp\u003eO50 Collector Evaluation\u003cbr\u003e\nOtzera 50: 33\/50 — Collectible\u003cbr\u003e\nFace-Up Performance: 75%\u003c\/p\u003e\n\n\u003cp\u003eTreatment \u0026amp; Origin Disclosure\u003cbr\u003e\nThe current Otzera record lists Namibia as the geographic origin. No treatment or independent laboratory report is documented in the current record.\u003c\/p\u003e\n\n\u003cp\u003eCare \u0026amp; Setting\u003cbr\u003e\nTourmaline is suitable for jewelry wear with sensible care. Clean with warm water, mild soap and a soft brush; avoid sudden temperature changes and aggressive cleaning methods.\u003c\/p\u003e\n\n\u003cp\u003eDigital Gem Passport\u003cbr\u003e\nAccompanied 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":51150481719543,"sku":"OTZ-2026-01646","price":1290.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01646-blue-green-tourmaline-1.jpg?v=1789159236"},{"product_id":"purple-spinel-otz-2026-01647","title":"1.28 ct Vietnamese Purple Spinel","description":"\u003cp\u003eCollector's Note\u003cbr\u003e\nA clean natural purple spinel from Vietnam with a precise round brilliant cut and lively face-up appearance. At 1.28 ct, the stone combines excellent transparency with flashes of violet and pink, making clarity and cutting its strongest collector attributes.\u003c\/p\u003e\n\n\u003cp\u003eGemstone Details\u003cbr\u003e\nGemstone: Natural Purple Spinel\u003cbr\u003e\nSpecies: Natural Spinel\u003cbr\u003e\nWeight: 1.28 ct\u003cbr\u003e\nShape \/ Cut: Round Brilliant Cut\u003cbr\u003e\nMeasurements: 7.05-7.07 x 4.05 mm\u003cbr\u003e\nOrigin: Vietnam\u003cbr\u003e\nTreatment: Not documented\u003c\/p\u003e\n\n\u003cp\u003eO50 Collector Evaluation\u003cbr\u003e\nOtzera 50: 34\/50 — Collectible\u003cbr\u003e\nFace-Up Performance: 75%\u003c\/p\u003e\n\n\u003cp\u003eTreatment \u0026amp; Origin Disclosure\u003cbr\u003e\nThe current Otzera record lists Vietnam as the geographic origin. No treatment or independent laboratory report is documented in the current record.\u003c\/p\u003e\n\n\u003cp\u003eCare \u0026amp; Setting\u003cbr\u003e\nSpinel 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\n\u003cp\u003eDigital Gem Passport\u003cbr\u003e\nAccompanied 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":51150481752311,"sku":"OTZ-2026-01647","price":930.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01647-purple-spinel-1.jpg?v=1789159147"},{"product_id":"purple-spinel-otz-2026-01651","title":"1.70 ct Natural Purple Spinel","description":"\u003cp\u003eCollector's Note\u003cbr\u003e\nA natural purple spinel with a soft pinkish-purple appearance and a cushion modified brilliant cut. At 1.70 ct, the stone has a broad face-up presence with flashes of rose and violet that shift as it moves.\u003c\/p\u003e\n\n\u003cp\u003eGemstone Details\u003cbr\u003e\nGemstone: Natural Purple Spinel\u003cbr\u003e\nSpecies: Natural Spinel\u003cbr\u003e\nWeight: 1.70 ct\u003cbr\u003e\nShape \/ Cut: Cushion Modified Brilliant Cut\u003cbr\u003e\nMeasurements: 8.05 x 6.09 x 4.45 mm\u003cbr\u003e\nOrigin: Origin not determined\u003cbr\u003e\nTreatment: Not documented\u003c\/p\u003e\n\n\u003cp\u003eO50 Collector Evaluation\u003cbr\u003e\nOtzera 50: 29\/50 — Collectible\u003cbr\u003e\nFace-Up Performance: 70%\u003c\/p\u003e\n\n\u003cp\u003eTreatment \u0026amp; Origin Disclosure\u003cbr\u003e\nGeographic origin has not been determined in the current Otzera record. No treatment or independent laboratory report is documented in the current record.\u003c\/p\u003e\n\n\u003cp\u003eCare \u0026amp; Setting\u003cbr\u003e\nSpinel 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\n\u003cp\u003eDigital Gem Passport\u003cbr\u003e\nAccompanied by an Otzera Digital Gem Passport preserving its identifying details, treatment and origin disclosures, and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51150481785079,"sku":"OTZ-2026-01651","price":699.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01651-purple-spinel-1.jpg?v=1789159044"},{"product_id":"2-82-ct-natural-pinkish-purple-sapphire-gia-report","title":"2.82 ct Natural Pinkish Purple Sapphire — GIA Report","description":"\u003ch3\u003eCollector's Note\u003c\/h3\u003e\u003cp\u003eA substantial 2.82 ct natural sapphire with a lively pinkish-purple color and an elongated cushion outline. Its transparent appearance and bright mixed brilliant cutting give it strong visual presence, while the GIA report confirms natural corundum and heat treatment.\u003c\/p\u003e\u003ch3\u003eGemstone Details\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eGemstone:\u003c\/strong\u003e Natural Pinkish Purple Sapphire\u003cbr\u003e\u003cstrong\u003eSpecies:\u003c\/strong\u003e Natural Corundum\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.82 ct\u003cbr\u003e\u003cstrong\u003eShape \/ Cut:\u003c\/strong\u003e Cushion Modified Brilliant Cut\u003cbr\u003e\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 9.36 × 6.71 × 5.13 mm\u003cbr\u003e\u003cstrong\u003eTreatment:\u003c\/strong\u003e Heated\u003c\/p\u003e\u003ch3\u003eO50 Collector Evaluation\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eOtzera 50:\u003c\/strong\u003e 33\/50 — Collectible\u003cbr\u003e\u003cstrong\u003eFace-Up Performance:\u003c\/strong\u003e 75%\u003c\/p\u003e\u003ch3\u003eTreatment \u0026amp; Origin Disclosure\u003c\/h3\u003e\u003cp\u003eGIA Report 2191856139 identifies the stone as natural corundum, sapphire, pinkish purple, heated. Geographic origin was not requested.\u003c\/p\u003e\u003ch3\u003eLaboratory Documentation\u003c\/h3\u003e\u003cp\u003eAccompanied by GIA Sapphire Report 2191856139, dated November 27, 2018.\u003c\/p\u003e\u003ch3\u003eCare \u0026amp; Setting\u003c\/h3\u003e\u003cp\u003eCorundum is highly durable and suitable for everyday jewelry with normal care. Clean with warm water, mild soap and a soft brush.\u003c\/p\u003e\u003ch3\u003eDigital Gem Passport\u003c\/h3\u003e\u003cp\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details, disclosures and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51159530701047,"sku":"OTZ-2026-01652","price":3650.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01652-purple-sapphire-1.jpg?v=1789354433"},{"product_id":"1-40-ct-vietnamese-ruby-gia-origin-report","title":"1.40 ct Vietnamese Ruby — GIA Origin Report","description":"\u003ch3\u003eCollector's Note\u003c\/h3\u003e\u003cp\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\u003ch3\u003eGemstone Details\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eGemstone:\u003c\/strong\u003e Natural Ruby\u003cbr\u003e\u003cstrong\u003eSpecies:\u003c\/strong\u003e Natural Corundum\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.40 ct\u003cbr\u003e\u003cstrong\u003eShape \/ Cut:\u003c\/strong\u003e Cushion Mixed Cut\u003cbr\u003e\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 5.86 × 5.32 × 4.44 mm\u003cbr\u003e\u003cstrong\u003eOrigin:\u003c\/strong\u003e Vietnam\u003cbr\u003e\u003cstrong\u003eTreatment:\u003c\/strong\u003e Heated\u003c\/p\u003e\u003ch3\u003eO50 Collector Evaluation\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eOtzera 50:\u003c\/strong\u003e 37\/50 — Distinguished\u003cbr\u003e\u003cstrong\u003eFace-Up Performance:\u003c\/strong\u003e 85%\u003c\/p\u003e\u003ch3\u003eTreatment \u0026amp; Origin Disclosure\u003c\/h3\u003e\u003cp\u003eGIA Sapphire Origin Report 6204859040 identifies the stone as natural corundum, natural ruby, purple-red, of Vietnamese geographic origin, heated.\u003c\/p\u003e\u003ch3\u003eLaboratory Documentation\u003c\/h3\u003e\u003cp\u003eAccompanied by GIA Sapphire Origin Report 6204859040, dated February 1, 2020.\u003c\/p\u003e\u003ch3\u003eCare \u0026amp; Setting\u003c\/h3\u003e\u003cp\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\u003ch3\u003eDigital Gem Passport\u003c\/h3\u003e\u003cp\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\/OTZ-2026-01653-vietnam-ruby-1.jpg?v=1789354326"},{"product_id":"4-06-ct-ceylon-blue-sapphire-gia-origin-report","title":"4.06 ct Ceylon Blue Sapphire — GIA Origin Report","description":"\u003ch3\u003eCollector's Note\u003c\/h3\u003e\u003cp\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\u003ch3\u003eGemstone Details\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eGemstone:\u003c\/strong\u003e Natural Blue Sapphire\u003cbr\u003e\u003cstrong\u003eSpecies:\u003c\/strong\u003e Natural Corundum\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 4.06 ct\u003cbr\u003e\u003cstrong\u003eShape \/ Cut:\u003c\/strong\u003e Cushion Mixed Cut\u003cbr\u003e\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 9.92 × 7.16 × 5.41 mm\u003cbr\u003e\u003cstrong\u003eOrigin:\u003c\/strong\u003e Sri Lanka (Ceylon)\u003cbr\u003e\u003cstrong\u003eTreatment:\u003c\/strong\u003e Heated\u003c\/p\u003e\u003ch3\u003eO50 Collector Evaluation\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eOtzera 50:\u003c\/strong\u003e 39\/50 — Distinguished\u003cbr\u003e\u003cstrong\u003eFace-Up Performance:\u003c\/strong\u003e 80%\u003c\/p\u003e\u003ch3\u003eTreatment \u0026amp; Origin Disclosure\u003c\/h3\u003e\u003cp\u003eGIA Sapphire Origin Report 1216818065 identifies the stone as natural corundum, blue sapphire, of Sri Lankan geographic origin, heated.\u003c\/p\u003e\u003ch3\u003eLaboratory Documentation\u003c\/h3\u003e\u003cp\u003eAccompanied by GIA Sapphire Origin Report 1216818065, dated June 30, 2021.\u003c\/p\u003e\u003ch3\u003eCare \u0026amp; Setting\u003c\/h3\u003e\u003cp\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\u003ch3\u003eDigital Gem Passport\u003c\/h3\u003e\u003cp\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-natural-ruby-4.jpg?v=1789353939"},{"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 documented Ceylon provenance are the principal collector attributes.\u003c\/p\u003e\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\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003eOtzera 50: 36\/50 — Distinguished\u003cbr\u003eFace-Up Performance: 90%\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTreatment \u0026amp; Origin Disclosure\u003c\/strong\u003e\u003cbr\u003eThe current Otzera record lists Sri Lanka (Ceylon) as geographic origin and heat treatment.\u003c\/p\u003e\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\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":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":"3-19-ct-raspberry-rhodolite-garnet","title":"3.19 ct Raspberry Rhodolite Garnet","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eA substantial 3.19 ct rhodolite garnet with an appealing raspberry color and an unusual pear-shaped buff-top mixed cut. The combination of size, transparency and distinctive cutting gives the stone a character beyond a conventional rhodolite.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003eGemstone: Raspberry Rhodolite Garnet\u003cbr\u003eSpecies: Garnet\u003cbr\u003eWeight: 3.19 ct\u003cbr\u003eShape \/ Cut: Pear Shape Buff Top Mixed Cut\u003cbr\u003eMeasurements: 10.19 × 7.75 × 5.84 mm\u003cbr\u003eTreatment: No treatment documented\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003eOtzera 50: 32\/50 — Collectible\u003cbr\u003eFace-Up Performance: 78%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003cbr\u003eGarnet is suitable for jewelry wear with sensible care. 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, disclosures and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51159570710775,"sku":"OTZ-2026-01649","price":1088.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01649-raspberry-rhodolite-garnet-1.jpg?v=1789353564"},{"product_id":"1-20-ct-brazilian-blue-green-tourmaline","title":"1.20 ct Brazilian Blue-Green Tourmaline","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003cbr\u003eA natural blue-green tourmaline from Brazil with an oval modified brilliant cut and an attractive balance of blue and green. At 1.20 ct, its transparent appearance and lively mixed color give it an easy, versatile collector appeal.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003cbr\u003eGemstone: Natural Blue-Green Tourmaline\u003cbr\u003eSpecies: Natural Tourmaline\u003cbr\u003eWeight: 1.20 ct\u003cbr\u003eShape \/ Cut: Oval Modified Brilliant Cut\u003cbr\u003eMeasurements: 7.38 × 6.14 × 3.96 mm\u003cbr\u003eOrigin: Brazil\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eO50 Collector Evaluation\u003c\/strong\u003e\u003cbr\u003eOtzera 50: 34\/50 — Collectible\u003cbr\u003eFace-Up Performance: 75%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOrigin\u003c\/strong\u003e\u003cbr\u003eBrazil.\u003c\/p\u003e\n\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 ultrasonic cleaning, 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":51159592698103,"sku":"OTZ-2026-01650","price":760.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01650-blue-green-tourmaline-1.jpg?v=1789355587"},{"product_id":"1-00-ct-blue-emerald-cut-sapphire","title":"1.00 ct Blue Emerald-Cut Sapphire","description":"\u003ch3\u003eCollector's Note\u003c\/h3\u003e\u003cp\u003eDeep blue color and the crisp geometry of an emerald cut give this 1.00 ct natural sapphire a refined, architectural look. The stone is eye-clean in normal viewing and shows brighter blue flashes as it moves, giving a compact one-carat gem strong visual character.\u003c\/p\u003e\u003ch3\u003eGemstone Details\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eGemstone:\u003c\/strong\u003e Natural Blue Sapphire\u003cbr\u003e\u003cstrong\u003eSpecies:\u003c\/strong\u003e Corundum\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.00 ct\u003cbr\u003e\u003cstrong\u003eShape \/ Cut:\u003c\/strong\u003e Emerald Cut\u003cbr\u003e\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 5.88 × 4.65 × 3.67 mm\u003cbr\u003e\u003cstrong\u003eTreatment:\u003c\/strong\u003e Heated\u003cbr\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e Surface abrasion from prior wear is present around the table.\u003c\/p\u003e\u003ch3\u003eO50 Collector Evaluation\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eOtzera 50:\u003c\/strong\u003e 33\/50 — Collectible\u003cbr\u003e\u003cstrong\u003eFace-Up Performance:\u003c\/strong\u003e 78%\u003c\/p\u003e\u003ch3\u003eTreatment \u0026amp; Origin Disclosure\u003c\/h3\u003e\u003cp\u003eHeat treatment is recorded for this sapphire. No geographic origin is assigned in the current Otzera record.\u003c\/p\u003e\u003ch3\u003eCare \u0026amp; Setting\u003c\/h3\u003e\u003cp\u003eSapphire is highly durable and well suited to jewelry wear. Clean with warm water, mild soap and a soft brush.\u003c\/p\u003e\u003ch3\u003eDigital Gem Passport\u003c\/h3\u003e\u003cp\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":51187941310711,"sku":"OTZ-2026-01660","price":725.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01660-blue-sapphire-1_1599858f-7e87-4a54-8813-359488ca87f2.jpg?v=1789877287"},{"product_id":"6-75-ct-pear-cut-tanzanite","title":"6.75 ct Pear-Cut Tanzanite","description":"\u003ch3\u003eCollector's Note\u003c\/h3\u003e\u003cp\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\u003ch3\u003eGemstone Details\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eGemstone:\u003c\/strong\u003e Natural Tanzanite\u003cbr\u003e\u003cstrong\u003eSpecies:\u003c\/strong\u003e Zoisite\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 6.75 ct\u003cbr\u003e\u003cstrong\u003eShape \/ Cut:\u003c\/strong\u003e Pear Mixed Cut\u003cbr\u003e\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 11.61 × 10.66 × 8.10 mm\u003cbr\u003e\u003cstrong\u003eOrigin:\u003c\/strong\u003e Tanzania\u003cbr\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e Some facet abrasion is present.\u003c\/p\u003e\u003ch3\u003eO50 Collector Evaluation\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eOtzera 50:\u003c\/strong\u003e 36\/50 — Distinguished\u003cbr\u003e\u003cstrong\u003eFace-Up Performance:\u003c\/strong\u003e 80%\u003c\/p\u003e\u003ch3\u003eTreatment \u0026amp; Origin Disclosure\u003c\/h3\u003e\u003cp\u003eThe current Otzera record lists Tanzania as the geographic origin.\u003c\/p\u003e\u003ch3\u003eCare \u0026amp; Setting\u003c\/h3\u003e\u003cp\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\u003ch3\u003eDigital Gem Passport\u003c\/h3\u003e\u003cp\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details, origin disclosure 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":"1-82-ct-purplish-red-natural-ruby-pgs-report","title":"1.82 ct Purplish Red Natural Ruby — PGS Report","description":"\u003ch3\u003eCollector's Note\u003c\/h3\u003e\u003cp\u003eA vivid purplish-red natural ruby with an elongated oval outline and a substantial 1.82 ct weight. The stone shows strong color across the face and is accompanied by Professional Gem Sciences Laboratory documentation, giving the listing a useful independent record of its identity, clarity, cut and traditional heat treatment.\u003c\/p\u003e\u003ch3\u003eGemstone Details\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eGemstone:\u003c\/strong\u003e Natural Ruby\u003cbr\u003e\u003cstrong\u003eSpecies:\u003c\/strong\u003e Natural Corundum\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.82 ct\u003cbr\u003e\u003cstrong\u003eShape \/ Cut:\u003c\/strong\u003e Oval Mixed Cut\u003cbr\u003e\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 9.04 × 6.30 × 3.32 mm\u003cbr\u003e\u003cstrong\u003eColor:\u003c\/strong\u003e Vivid Purplish Red\u003cbr\u003e\u003cstrong\u003eClarity:\u003c\/strong\u003e Slightly Included\u003cbr\u003e\u003cstrong\u003eTreatment:\u003c\/strong\u003e Heat (Traditional)\u003c\/p\u003e\u003ch3\u003eO50 Collector Evaluation\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eOtzera 50:\u003c\/strong\u003e 29\/50 — Collectible\u003cbr\u003e\u003cstrong\u003eFace-Up Performance:\u003c\/strong\u003e 73%\u003c\/p\u003e\u003ch3\u003eTreatment \u0026amp; Origin Disclosure\u003c\/h3\u003e\u003cp\u003eProfessional Gem Sciences Laboratory records traditional heat treatment. No geographic origin is stated on the accompanying report.\u003c\/p\u003e\u003ch3\u003eLaboratory Documentation\u003c\/h3\u003e\u003cp\u003eAccompanied by Professional Gem Sciences Laboratory Carte Blu Report No. 45020133, dated March 5, 2020.\u003c\/p\u003e\u003ch3\u003eCare \u0026amp; Setting\u003c\/h3\u003e\u003cp\u003eRuby is highly durable and well suited to jewelry wear. Clean with warm water, mild soap and a soft brush.\u003c\/p\u003e\u003ch3\u003eDigital Gem Passport\u003c\/h3\u003e\u003cp\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":51187947110647,"sku":"OTZ-2026-01662","price":3690.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01662-natural-ruby-1_b4a53f2f-01a7-4da8-b431-24e12129c1fe.jpg?v=1789846262"},{"product_id":"3-85-ct-golden-beryl-heliodor","title":"3.85 ct Golden Beryl — Heliodor","description":"\u003ch3\u003eCollector's Note\u003c\/h3\u003e\u003cp\u003eWarm golden-yellow color and a lively cushion modified brilliant cut define this 3.85 ct natural heliodor. The stone has strong face-up brightness and an appealing broad outline, giving it an easy, sunny presence that works equally well for a collector or a custom jewelry project.\u003c\/p\u003e\u003ch3\u003eGemstone Details\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eGemstone:\u003c\/strong\u003e Natural Golden Beryl (Heliodor)\u003cbr\u003e\u003cstrong\u003eSpecies:\u003c\/strong\u003e Beryl\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 3.85 ct\u003cbr\u003e\u003cstrong\u003eShape \/ Cut:\u003c\/strong\u003e Cushion Modified Brilliant\u003cbr\u003e\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 11.02 × 9.02 × 6.21 mm\u003cbr\u003e\u003cstrong\u003eColor:\u003c\/strong\u003e Golden Yellow\u003cbr\u003e\u003cstrong\u003eClarity:\u003c\/strong\u003e A faint fingerprint inclusion is visible under magnification.\u003c\/p\u003e\u003ch3\u003eO50 Collector Evaluation\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eOtzera 50:\u003c\/strong\u003e 34\/50 — Collectible\u003cbr\u003e\u003cstrong\u003eFace-Up Performance:\u003c\/strong\u003e 90%\u003c\/p\u003e\u003ch3\u003eCare \u0026amp; Setting\u003c\/h3\u003e\u003cp\u003eBeryl is suitable for jewelry wear with sensible care. Clean with warm water, mild soap and a soft brush; avoid sharp impacts and harsh chemicals.\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":51187947831543,"sku":"OTZ-2026-01663","price":489.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01663-golden-beryl-heliodor-1_f72e469d-d4f1-486f-b5d7-1bb2227d54f9.jpg?v=1789846308"},{"product_id":"1-44-ct-tanzanian-tanzanite","title":"1.44 ct Tanzanian Tanzanite","description":"\u003ch3\u003eCollector's Note\u003c\/h3\u003e\u003cp\u003eA lively 1.44 ct natural tanzanite from Tanzania with a classic oval modified brilliant cut and an appealing blue-violet appearance. Its transparent body and crisp oval outline make it an easy size for jewelry while retaining the distinctive color character that makes tanzanite so recognizable.\u003c\/p\u003e\u003ch3\u003eGemstone Details\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eGemstone:\u003c\/strong\u003e Natural Tanzanite\u003cbr\u003e\u003cstrong\u003eSpecies:\u003c\/strong\u003e Zoisite\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.44 ct\u003cbr\u003e\u003cstrong\u003eShape \/ Cut:\u003c\/strong\u003e Oval Modified Brilliant\u003cbr\u003e\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 8.35 × 6.49 × 3.99 mm\u003cbr\u003e\u003cstrong\u003eOrigin:\u003c\/strong\u003e Tanzania\u003c\/p\u003e\u003ch3\u003eO50 Collector Evaluation\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eOtzera 50:\u003c\/strong\u003e 32\/50 — Collectible\u003cbr\u003e\u003cstrong\u003eFace-Up Performance:\u003c\/strong\u003e 70%\u003c\/p\u003e\u003ch3\u003eTreatment \u0026amp; Origin Disclosure\u003c\/h3\u003e\u003cp\u003eThe current Otzera record lists Tanzania as the geographic origin.\u003c\/p\u003e\u003ch3\u003eCare \u0026amp; Setting\u003c\/h3\u003e\u003cp\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\u003ch3\u003eDigital Gem Passport\u003c\/h3\u003e\u003cp\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details, origin disclosure and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51188069957879,"sku":"OTZ-2026-01664","price":425.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01664-tanzanite-1.jpg?v=1789851433"},{"product_id":"1-66-ct-unheated-natural-ruby","title":"1.66 ct Unheated Natural Ruby","description":"\u003ch3\u003eCollector's Note\u003c\/h3\u003e\u003cp\u003eRich red color gives this 1.66 ct natural ruby immediate presence. Its elongated oval mixed cut gives the stone a distinctive character, while the current Otzera evaluation records no treatment, adding further collector interest without making the listing dependent on origin prestige.\u003c\/p\u003e\u003ch3\u003eGemstone Details\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eGemstone:\u003c\/strong\u003e Natural Ruby\u003cbr\u003e\u003cstrong\u003eSpecies:\u003c\/strong\u003e Corundum\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.66 ct\u003cbr\u003e\u003cstrong\u003eShape \/ Cut:\u003c\/strong\u003e Oval Mixed Cut\u003cbr\u003e\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 8.41 × 5.99 × 3.65 mm\u003cbr\u003e\u003cstrong\u003eTreatment:\u003c\/strong\u003e None recorded in the current Otzera evaluation\u003c\/p\u003e\u003ch3\u003eO50 Collector Evaluation\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eOtzera 50:\u003c\/strong\u003e 29\/50 — Collectible\u003cbr\u003e\u003cstrong\u003eFace-Up Performance:\u003c\/strong\u003e 60%\u003c\/p\u003e\u003ch3\u003eTreatment \u0026amp; Origin Disclosure\u003c\/h3\u003e\u003cp\u003eThe current Otzera record lists no treatment. No geographic origin is assigned in the current record.\u003c\/p\u003e\u003ch3\u003eCare \u0026amp; Setting\u003c\/h3\u003e\u003cp\u003eRuby is highly durable and 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\u003ch3\u003eDigital Gem Passport\u003c\/h3\u003e\u003cp\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":51188425457911,"sku":"OTZ-2026-01665","price":2280.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01665-natural-ruby-1.jpg?v=1789856790"},{"product_id":"2-08-ct-tanzanian-tanzanite","title":"2.08 ct Tanzanian Tanzanite","description":"\u003ch3\u003eCollector's Note\u003c\/h3\u003e\u003cp\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\u003ch3\u003eGemstone Details\u003c\/h3\u003e\u003cp\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\u003c\/p\u003e\u003ch3\u003eO50 Collector Evaluation\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eOtzera 50:\u003c\/strong\u003e 36\/50 — Distinguished\u003cbr\u003e\u003cstrong\u003eFace-Up Performance:\u003c\/strong\u003e 83%\u003c\/p\u003e\u003ch3\u003eTreatment \u0026amp; Origin Disclosure\u003c\/h3\u003e\u003cp\u003eThe current Otzera record lists Tanzania as the geographic origin.\u003c\/p\u003e\u003ch3\u003eCare \u0026amp; Setting\u003c\/h3\u003e\u003cp\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\u003ch3\u003eDigital Gem Passport\u003c\/h3\u003e\u003cp\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details, origin disclosure 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-1.jpg?v=1789856813"},{"product_id":"3-07-ct-antique-cut-aquamarine","title":"3.07 ct Antique-Cut Aquamarine","description":"\u003ch3\u003eCollector's Note\u003c\/h3\u003e\u003cp\u003eA soft, refreshing blue aquamarine with an unusual antique-style cushion mixed cut. At 3.07 ct, the stone has a generous face-up spread and the distinctive personality of an older cutting style, offering something quite different from the uniform precision of modern commercial aquamarine.\u003c\/p\u003e\u003ch3\u003eGemstone Details\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eGemstone:\u003c\/strong\u003e Natural Aquamarine\u003cbr\u003e\u003cstrong\u003eSpecies:\u003c\/strong\u003e Beryl\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 3.07 ct\u003cbr\u003e\u003cstrong\u003eShape \/ Cut:\u003c\/strong\u003e Cushion Mixed Cut\u003cbr\u003e\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 9.01 × 8.08 × 6.24 mm\u003cbr\u003e\u003cstrong\u003eColor:\u003c\/strong\u003e Light Blue\u003c\/p\u003e\u003ch3\u003eO50 Collector Evaluation\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eOtzera 50:\u003c\/strong\u003e 25\/50 — Discovery\u003cbr\u003e\u003cstrong\u003eFace-Up Performance:\u003c\/strong\u003e 65%\u003c\/p\u003e\u003ch3\u003eProvenance \/ Collector Significance\u003c\/h3\u003e\u003cp\u003eThe unusual cutting style gives this stone particular collector charm. Its appeal lies in the individuality of the antique-style proportions rather than the visual uniformity of a contemporary precision cut.\u003c\/p\u003e\u003ch3\u003eCare \u0026amp; Setting\u003c\/h3\u003e\u003cp\u003eAquamarine is suitable for jewelry wear with sensible care. Clean with warm water, mild soap and a soft brush; avoid sharp impacts and harsh chemicals.\u003c\/p\u003e\u003ch3\u003eDigital Gem Passport\u003c\/h3\u003e\u003cp\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details, collector notes and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51188425851127,"sku":"OTZ-2026-01667","price":645.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01667-aquamarine-1.jpg?v=1789856833"},{"product_id":"2-18-ct-nigerian-spessartite-garnet-precision-cut","title":"2.18 ct Nigerian Spessartite Garnet — Precision Cut","description":"\u003ch3\u003eCollector's Note\u003c\/h3\u003e\u003cp\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\u003ch3\u003eGemstone Details\u003c\/h3\u003e\u003cp\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\u003eClarity:\u003c\/strong\u003e Loupe clean\u003c\/p\u003e\u003ch3\u003eO50 Collector Evaluation\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eOtzera 50:\u003c\/strong\u003e 38\/50 — Distinguished\u003cbr\u003e\u003cstrong\u003eFace-Up Performance:\u003c\/strong\u003e 78%\u003c\/p\u003e\u003ch3\u003eTreatment \u0026amp; Origin Disclosure\u003c\/h3\u003e\u003cp\u003eThe current Otzera record lists Nigeria as the geographic origin.\u003c\/p\u003e\u003ch3\u003eCare \u0026amp; Setting\u003c\/h3\u003e\u003cp\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\u003ch3\u003eDigital Gem Passport\u003c\/h3\u003e\u003cp\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details, origin disclosure 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\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 \u0026amp; Origin Disclosure\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo geographic origin is assigned in the current Otzera record. Morganite is evaluated in the treatment-neutral O50 mode.\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\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 \u0026amp; Origin Disclosure\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo geographic origin is assigned in the current Otzera record. Heliodor is evaluated in the treatment-neutral O50 mode.\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":"1-24-ct-unheated-ceylon-yellow-sapphire","title":"1.24 ct Unheated Ceylon Yellow Sapphire","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA natural yellow sapphire from Sri Lanka with a delicate sunny color, elegant pear outline and the added collector appeal of no-heat status in the current Otzera record. At 1.24 ct, it offers an easy-to-wear size with a distinctive Ceylon provenance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone:\u003c\/strong\u003e Natural Yellow Sapphire\u003cbr\u003e\n\u003cstrong\u003eSpecies:\u003c\/strong\u003e Corundum\u003cbr\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.24 ct\u003cbr\u003e\n\u003cstrong\u003eShape \/ Cut:\u003c\/strong\u003e Pear Mixed Cut\u003cbr\u003e\n\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 7.70 × 4.97 × 3.93 mm\u003cbr\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Sri Lanka (Ceylon)\u003cbr\u003e\n\u003cstrong\u003eTreatment:\u003c\/strong\u003e None recorded in the current Otzera evaluation\u003cbr\u003e\n\u003cstrong\u003eClarity:\u003c\/strong\u003e Natural feather and fingerprint inclusions visible on close inspection\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 33\/50 — Collectible\u003cbr\u003e\n\u003cstrong\u003eFace-Up Performance:\u003c\/strong\u003e 60%\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTreatment \u0026amp; Origin Disclosure\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe current Otzera record lists Sri Lanka (Ceylon) as the geographic origin and no treatment. The acquisition notes further reference the Nivithigala mining region. These statements are based on the current Otzera record rather than an independent laboratory origin report.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSapphire is highly durable and 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\u003c\/p\u003e\n\u003cp\u003eAccompanied by an Otzera Digital Gem Passport preserving its identifying details, origin and treatment disclosures, inclusion notes and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51188916322551,"sku":"OTZ-2026-01671","price":565.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01671-unheated-yellow-sapphire-1.jpg?v=1789877193"},{"product_id":"2-44-ct-unheated-ceylon-blue-sapphire","title":"2.44 ct Unheated Ceylon Blue Sapphire","description":"\u003cp\u003e\u003cstrong\u003eCollector's Note\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA 2.44 ct natural Ceylon blue sapphire with no heat recorded in the current Otzera evaluation and an unusually broad face-up presentation for its weight. Its light-to-medium blue appearance and visible silk give it a distinctly natural character, making it an accessible option for a collector who values size, provenance and unheated status.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone:\u003c\/strong\u003e Natural Blue Sapphire\u003cbr\u003e\u003cstrong\u003eSpecies:\u003c\/strong\u003e Corundum\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.44 ct\u003cbr\u003e\u003cstrong\u003eShape \/ Cut:\u003c\/strong\u003e Oval Mixed Cut\u003cbr\u003e\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 10.55 × 7.22 × 3.18 mm\u003cbr\u003e\u003cstrong\u003eOrigin:\u003c\/strong\u003e Sri Lanka (Ceylon)\u003cbr\u003e\u003cstrong\u003eTreatment:\u003c\/strong\u003e None recorded in the current Otzera evaluation\u003cbr\u003e\u003cstrong\u003eClarity:\u003c\/strong\u003e Fine loupe-visible intact needle silk\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 24\/50 — Discovery\u003cbr\u003e\u003cstrong\u003eFace-Up Performance:\u003c\/strong\u003e 43% \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCut \u0026amp; Optical Note\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe stone is cut unusually shallow, creating substantial central windowing. That same shallow construction gives it a notably large face-up spread for 2.44 ct. It is best suited to a collector who prioritizes unheated character and visible size over optimized light return.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTreatment \u0026amp; Origin Disclosure\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe current Otzera record lists Sri Lanka (Ceylon) as the geographic origin and no treatment. These statements are based on the current Otzera record rather than an independent laboratory origin report.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCare \u0026amp; Setting\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSapphire is highly durable for jewelry wear. Because of the stone's shallow profile, setting design should provide secure support around the girdle. Clean with warm water, mild soap and a soft brush.\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, origin and treatment disclosures, cut observations and O50 evaluation.\u003c\/p\u003e","brand":"Otzera","offers":[{"title":"Default Title","offer_id":51188916355319,"sku":"OTZ-2026-01672","price":685.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/OTZ-2026-01672-unheated-blue-sapphire-1.jpg?v=1789876660"}],"url":"https:\/\/otzera.com\/collections\/otzera-rated-gemstones.oembed","provider":"Otzera","version":"1.0","type":"link"}