{"title":"Individual Gemstones","description":"\u003cp\u003eDiscover individual gemstones selected and described with gemological care. Listings are designed to help both new buyers and experienced collectors understand what makes each stone distinctive.\u003c\/p\u003e","products":[{"product_id":"1-71-ct-paraiba-type-tourmaline-gia-certified","title":"1.71 ct Paraiba-Type Tourmaline, GIA Certified","description":"\u003cp\u003eA lovely green-blue tourmaline with the characteristic electric color collectors associate with Paraiba-type gems. This transparent oval stone is cut in a modified brilliant style, giving it lively face-up brilliance and a distinctive tropical blue-green appearance.\u003c\/p\u003e\n\u003cp\u003eAccompanied by GIA Tourmaline Report \u003cstrong\u003e5191602078\u003c\/strong\u003e, this loose gemstone is identified as a \u003cstrong\u003ecopper and manganese-bearing tourmaline\u003c\/strong\u003e that may be called \u003cstrong\u003e“Paraiba tourmaline”\u003c\/strong\u003e in the trade.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone:\u003c\/strong\u003e Tourmaline\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTrade Name:\u003c\/strong\u003e Paraiba-type Tourmaline\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 1.71 carats\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eShape:\u003c\/strong\u003e Oval\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCut:\u003c\/strong\u003e Modified Brilliant Cut\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eColor:\u003c\/strong\u003e Green-Blue\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 8.69 × 6.16 × 4.91 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eReport:\u003c\/strong\u003e GIA Tourmaline Report 5191602078\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOrigin:\u003c\/strong\u003e Africa\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA rare and desirable choice for collectors or for a custom jewelry design, this gem offers the prized Paraiba-type color appearance in an elegant oval format, with independent GIA documentation for added confidence.\u003c\/p\u003e","brand":"otzera","offers":[{"title":"Natural","offer_id":50920510488823,"sku":"4396751","price":4750.0,"currency_code":"USD","in_stock":true}],"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":"2-48-ct-colombian-emerald","title":"2.48 ct Colombian Emerald","description":"\u003cp\u003eA richly colored Colombian emerald displaying a strong, slightly bluish-green hue. This gem is fashioned as a square emerald cut, showcasing its classic color and natural character in an elegant, balanced form. \u003c\/p\u003e\n\u003cp\u003eAccompanied by \u003cstrong\u003eCarte Blu Report 44080046\u003c\/strong\u003e from Professional Gem Sciences Laboratory, dated \u003cstrong\u003eSeptember 23, 2019\u003c\/strong\u003e, the stone is identified as a \u003cstrong\u003enatural emerald\u003c\/strong\u003e of \u003cstrong\u003eColombian origin\u003c\/strong\u003e. The report describes the emerald as \u003cstrong\u003every well made\u003c\/strong\u003e, with \u003cstrong\u003every good polish\u003c\/strong\u003e, \u003cstrong\u003egood symmetry\u003c\/strong\u003e, and a \u003cstrong\u003emoderate clarity enhancement (F2)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone Details\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eGemstone: Natural Emerald\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMineral Species: Beryl\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWeight: 2.48 carats\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eShape: Square\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCut: Emerald Cut\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eColor: Strong Slightly Bluish Green\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTransparency: Transparent\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMeasurements: 7.92–7.84 × 6.16 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTable: 59%\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eTotal Depth: 78.2%\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePolish: Very Good\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSymmetry: Good\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOverall Cut: Very Well Made\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eClarity Enhancement: Moderate\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEnhancement Stability: Very Good\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eGeographic Origin: Colombia\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eReport: Carte Blu \/ PGSL Report 44080046\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA distinctive choice for a collector or custom jewelry design, this emerald combines desirable Colombian origin, substantial carat weight, and a timeless square emerald cut. Its lts light color saturation and the amount of inclusions make it a great entry point for someone looking for a good size emerald at an affordable price.\u003c\/p\u003e","brand":"otzera","offers":[{"title":"Default Title","offer_id":50958390821111,"sku":"2167591","price":1450.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/2.48emerald.png?v=1785331891"},{"product_id":"1-27-ct-unheated-cambodian-royal-blue-sapphire","title":"1.27 ct Unheated Cambodian Royal Blue Sapphire","description":"\u003cp class=\"p1\"\u003eA richly saturated natural sapphire with an intense vivid-blue color and a refined antique oval silhouette. This 1.27-carat stone displays the deep, commanding blue associated with fine royal-blue sapphires, balanced by strong transparency and a color that comes to life in sunlight. \u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe sapphire was examined by Professional Gem Sciences Laboratory and identified as originating from \u003cb\u003eCambodia\u003c\/b\u003e. No gemological evidence of heat treatment was detected—an important distinction, as most sapphires in today’s market are routinely heated to improve their color or clarity. The report also awards the stone the laboratory’s special \u003cb\u003e“PGS-type Royal Blue”\u003c\/b\u003e color designation.\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e\u003cb\u003eGemstone Details\u003c\/b\u003e\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li3\"\u003e\n\u003cb\u003eGemstone:\u003c\/b\u003e Natural Sapphire\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cb\u003eMineral Species:\u003c\/b\u003e Corundum\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cb\u003eWeight:\u003c\/b\u003e 1.27 carats\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cb\u003eShape:\u003c\/b\u003e Oval \u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cb\u003eCut:\u003c\/b\u003e Mixed cut\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cb\u003eColor:\u003c\/b\u003e Vivid Blue\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cb\u003eSpecial Color Designation:\u003c\/b\u003e PGS-type Royal Blue\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cb\u003eTransparency:\u003c\/b\u003e Transparent\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cb\u003eClarity Grade:\u003c\/b\u003e Slightly Included\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cb\u003eMeasurements:\u003c\/b\u003e 6.38 × 5.56 × 4.06 mm\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cb\u003ePolish:\u003c\/b\u003e Very Good\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cb\u003eSymmetry:\u003c\/b\u003e Very Good\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cb\u003eOverall Cut Grade:\u003c\/b\u003e Very Well Made\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cb\u003eGeographic Origin:\u003c\/b\u003e Cambodia\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cb\u003eEnhancement:\u003c\/b\u003e None — no gemological evidence of heat present\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cb\u003eLaboratory:\u003c\/b\u003e Professional Gem Sciences Laboratory\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cb\u003eReport Number:\u003c\/b\u003e 44080102\u003c\/li\u003e\n\u003cli class=\"li3\"\u003e\n\u003cb\u003eReport Date:\u003c\/b\u003e October 11, 2019\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p4\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eCombining vivid royal-blue color, documented Cambodian origin and an unheated condition, this sapphire offers the qualities sought by both gemstone collectors and jewelry connoisseurs. Its versatile oval shape makes it equally well suited for a custom ring or pendant, while its independent laboratory documentation provides confidence in its identity, origin and treatment status.\u003c\/p\u003e","brand":"otzera","offers":[{"title":"Default Title","offer_id":50974865490167,"sku":"7326518","price":2450.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/1-27-ct-cambodian-royal-blue-sapphire-angle-2_97ec3f4f-bb46-45cf-9db6-05afdd3e6d99.jpg?v=1787653431"},{"product_id":"0-51-ct-natural-muzo-colombian-emerald","title":"0.51 ct Natural Muzo Colombian Emerald","description":"\u003cp class=\"p2\"\u003eA refined natural emerald accompanied by an original Colombian gemological certificate identifying its origin as \u003cb\u003eMuzo, Colombia\u003c\/b\u003e. Weighing approximately \u003cb\u003e0.51 carat\u003c\/b\u003e, the gemstone has been fashioned into a classic rectangular emerald cut with balanced dimensions of 5.50 × 4.39 × 2.80 mm.\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eMuzo is one of the most recognized names in the emerald world, historically associated with some of Colombia’s most celebrated green gemstones. Documented Muzo provenance adds an important layer of interest to this emerald, particularly for collectors and buyers who value geographic origin alongside beauty and rarity.\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eThe certificate records the stone’s color as green, together with the handwritten notation \u003cb\u003e“bG 4\/3 – VVS III.”\u003c\/b\u003e The stone is accompanied by its original certificate signed by Marcela Jiménez R., a Graduate Gemologist of the Gemological Institute of America.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eGemstone Details\u003c\/b\u003e\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li4\"\u003e\n\u003cb\u003eGemstone:\u003c\/b\u003e Natural Emerald\u003c\/li\u003e\n\u003cli class=\"li4\"\u003e\n\u003cb\u003eWeight:\u003c\/b\u003e 0.51 carat\u003c\/li\u003e\n\u003cli class=\"li4\"\u003e\n\u003cb\u003eShape:\u003c\/b\u003e Rectangular\u003c\/li\u003e\n\u003cli class=\"li4\"\u003e\n\u003cb\u003eCut:\u003c\/b\u003e Step Cut\u003c\/li\u003e\n\u003cli class=\"li4\"\u003e\n\u003cb\u003eMeasurements:\u003c\/b\u003e 5.50 × 4.39 × 2.80 mm\u003c\/li\u003e\n\u003cli class=\"li4\"\u003e\n\u003cb\u003eColor:\u003c\/b\u003e Green\u003c\/li\u003e\n\u003cli class=\"li4\"\u003e\n\u003cb\u003eGeographic Origin:\u003c\/b\u003e Muzo, Colombia\u003c\/li\u003e\n\u003cli class=\"li4\"\u003e\n\u003cb\u003eTreatment Status:\u003c\/b\u003e Minor Enhancement\u003c\/li\u003e\n\u003cli class=\"li4\"\u003e\n\u003cb\u003eDocumentation:\u003c\/b\u003e Original handwritten Colombian certificate included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p5\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eCompact yet rich in provenance, this emerald offers the appeal of documented Colombian origin in a versatile size. Its rectangular form would lend itself well to a delicate ring, pendant or custom collector-focused jewelry design.\u003c\/p\u003e","brand":"otzera","offers":[{"title":"Default Title","offer_id":50974920573175,"sku":"8361457","price":815.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/0-51-ct-muzo-colombian-emerald-face-up_63085532-ebfc-4c7a-a77b-3de46ab0bb12.png?v=1789009918"},{"product_id":"1-15-ct-natural-ruby-from-sri-lanka-dual-certified","title":"1.15 ct Natural Pinkish Red Ruby from Sri Lanka — Dual Certified","description":"\u003cp class=\"p2\"\u003eThis natural ruby displays a vivid pinkish-red color, with lively flashes of red, pink and magenta visible as the stone moves in the sunlight. Its softly rounded cushion shape gives it a classic appearance, while the mixed-cut faceting helps distribute color and brilliance across the face of the gemstone.\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eThe ruby is accompanied by \u003cb\u003etwo independent gemological reports\u003c\/b\u003e. The primary report from Professional Gem Sciences Laboratory records a weight of \u003cb\u003e1.15 carats\u003c\/b\u003e, while an earlier report from Tokyo Gem Laboratory in Thailand records \u003cb\u003e1.16 carats\u003c\/b\u003e. This minor difference is because I fixed a small abrasion on the stone after purchasing it.\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eBoth laboratories identify the gemstone as a \u003cb\u003enatural ruby. \u003c\/b\u003eIt is at the far pink end of the spectrum and is not priced as a rich red ruby would be priced for that reason. But names aside, this bright stone emits life from the very first moment you look at it. Both reports confirm evidence of traditional heat enhancement. The PGSL report further attributes the ruby’s geographic origin to \u003cb\u003eSri Lanka, historically known as Ceylon\u003c\/b\u003e, one of the world’s most respected sources of fine ruby and sapphire.\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eThe stone was personally acquired during a gemstone-buying trip to Thailand many years ago. This documented history, together with its dual certification, gives the ruby an added sense of provenance and makes it especially appealing as a collectible gemstone.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eGemstone Details\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e\u003cb\u003eGemstone:\u003c\/b\u003e Natural Ruby\u003cbr\u003e\u003cb\u003eMineral:\u003c\/b\u003e Corundum\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 1.15 carats\u003cbr\u003e\u003cb\u003eShape:\u003c\/b\u003e Cushion\u003cbr\u003e\u003cb\u003eCut:\u003c\/b\u003e Mixed Cut\u003cbr\u003e\u003cb\u003eMeasurements:\u003c\/b\u003e 6.58 × 5.23 × 3.71 mm\u003cbr\u003e\u003cb\u003eColor:\u003c\/b\u003e Vivid Purplish Red \/ Pinkish Red\u003cbr\u003e\u003cb\u003ePolish:\u003c\/b\u003e Very Good\u003cbr\u003e\u003cb\u003eSymmetry:\u003c\/b\u003e Very Good\u003cbr\u003e\u003cb\u003eOverall Cut Grade:\u003c\/b\u003e Very Well Made\u003cbr\u003e\u003cb\u003eGeographic Origin:\u003c\/b\u003e Sri Lanka (Ceylon)\u003cbr\u003e\u003cb\u003eEnhancement:\u003c\/b\u003e Standard Heat\u003cbr\u003e\u003cb\u003eTreatment Stability:\u003c\/b\u003e Excellent\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eCertification\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e\u003cb\u003ePrimary Report:\u003c\/b\u003e Professional Gem Sciences Laboratory\u003cbr\u003e\u003cb\u003eReport Number:\u003c\/b\u003e 3812001536\u003cbr\u003e\u003cb\u003eReport Date:\u003c\/b\u003e October 15, 2019\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e\u003cb\u003eSecondary Report:\u003c\/b\u003e Tokyo Gem Laboratory, Thailand\u003cbr\u003e\u003cb\u003eFile Number:\u003c\/b\u003e 23110261\u003cbr\u003e\u003cb\u003eReport Date:\u003c\/b\u003e November 11, 2013\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eProvenance\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003ePersonally acquired during a gemstone-buying trip to Thailand and retained for many years before being selected for the Otzera collection.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eThe Otzera Perspective\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eThis ruby combines attractive color, documented Sri Lankan origin and an unusually well-supported gemological history. Its dual certification provides added confidence in its natural identity, while its personal buying-trip provenance gives the stone a story that extends beyond its laboratory specifications.\u003c\/p\u003e\n\u003cp class=\"p2\"\u003eEach Otzera gemstone is individually selected for its beauty, character and collectible appeal. This ruby is extraordinarily clean and free from inclusions for ruby, making it an attractive stone for a collector with discerning taste.\u003c\/p\u003e","brand":"otzera","offers":[{"title":"Default Title","offer_id":50974973329655,"sku":"1963562","price":2250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/1-15-ct-sri-lanka-ruby-face-up_31bf6205-86c7-4be1-b25f-3eda3b25346a.jpg?v=1789010109"},{"product_id":"2-41-ct-unheated-australian-blue-sapphire","title":"2.41 ct Unheated Australian Blue Sapphire - GIA Certified","description":"\u003cp class=\"p2\"\u003e\u003cb\u003eClassic Shape - Cushion Sugarloaf Cabochon\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eThis distinctive natural sapphire from Australia weighs \u003cb\u003e2.41 carats\u003c\/b\u003e and has been shaped into a beautifully sculptural \u003cb\u003ecushion shape sugarloaf cabochon\u003c\/b\u003e. Its softly rounded square outline and high-domed profile give the stone a strong visual presence while allowing its deep blue color to remain the focal point.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eThe sapphire is described by GIA as \u003cb\u003etransparent blue natural corundum\u003c\/b\u003e, with an Australian geographic origin. Most importantly, the report states \u003cb\u003eno indications of heating\u003c\/b\u003e—an increasingly meaningful distinction in a market where many sapphires are routinely heat treated to improve their color or clarity.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eAt \u003cb\u003e7.33 × 7.28 × 4.56 mm\u003c\/b\u003e, the stone has balanced proportions and an appealing square shape. Its sugarloaf cut gives it a smooth, architectural quality that would work beautifully in a custom ring or pendant, while also making it an interesting standalone addition to a gemstone collection.\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e\u003cb\u003eGemstone Details\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e\u003cb\u003eGemstone:\u003c\/b\u003e Natural Sapphire\u003cbr\u003e\u003cb\u003eSpecies:\u003c\/b\u003e Natural Corundum\u003cbr\u003e\u003cb\u003eOrigin:\u003c\/b\u003e Australia\u003cbr\u003e\u003cb\u003eColor:\u003c\/b\u003e Blue\u003cbr\u003e\u003cb\u003eTransparency:\u003c\/b\u003e Transparent\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 2.41 carats\u003cbr\u003e\u003cb\u003eShape:\u003c\/b\u003e Cushion Sugarloaf Cabochon\u003cbr\u003e\u003cb\u003eMeasurements:\u003c\/b\u003e 7.33 × 7.28 × 4.56 mm\u003cbr\u003e\u003cb\u003eTreatment:\u003c\/b\u003e No indications of heating\u003cbr\u003e\u003cb\u003eCertification:\u003c\/b\u003e GIA Sapphire Origin Report No. 5201859064, dated February 1, 2020\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e\u003cb\u003eOtzera Collector’s Note\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eThis sapphire brings together three desirable qualities: a distinctive cabochon form, documented Australian origin, and an unheated treatment status. The result is a gemstone with both visual character and strong gemological documentation—ideal for a collector who values natural materials with an individual identity.\u003c\/p\u003e","brand":"otzera","offers":[{"title":"Default Title","offer_id":50983384285431,"sku":"3509645","price":2150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/otzera-2-41ct-australian-blue-sapphire-sugarloaf-front_b16d7dd7-5a50-4b18-a514-412a8e23d3cc.jpg?v=1789010235"},{"product_id":"2-30-ct-blue-sapphire","title":"2.30 ct Blue Sapphire","description":"\u003cp\u003eThis richly colored natural sapphire weighs \u003cstrong\u003e2.30 carats\u003c\/strong\u003e and displays a dark, slightly over-saturated blue. Cut into a classic oval mixed shape, the stone combines a refined outline with crisp faceting that draws light across its surface and emphasizes its dramatic color.\u003c\/p\u003e\n\u003cp\u003eMeasuring \u003cstrong\u003e9.08 × 6.88 × 4.32 mm\u003c\/strong\u003e, the sapphire has an attractive face-up presence and balanced proportions. \u003c\/p\u003e\n\u003cp\u003eThe stone has undergone \u003cstrong\u003eheat treatment\u003c\/strong\u003e, the widely accepted enhancement used in the sapphire market to improve color. \u003c\/p\u003e\n\u003ch3\u003eGemstone Details\u003c\/h3\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 2.30 carats\u003cbr\u003e\u003cstrong\u003eShape:\u003c\/strong\u003e Oval Mixed Cut\u003cbr\u003e\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 9.08 × 6.88 × 4.32 mm\u003cbr\u003e\u003cstrong\u003eColor:\u003c\/strong\u003e Dark Blue\u003cbr\u003e\u003cstrong\u003ePolish:\u003c\/strong\u003e Very Good\u003cbr\u003e\u003cstrong\u003eSymmetry:\u003c\/strong\u003e Very Good\u003cbr\u003e\u003cstrong\u003eOverall Cut Grade:\u003c\/strong\u003e Very Well Made\u003cbr\u003e\u003cstrong\u003eEnhancement:\u003c\/strong\u003e Heat\u003cbr\u003e\u003cstrong\u003eStability:\u003c\/strong\u003e Excellent\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eOtzera Collector’s Note\u003c\/h3\u003e\n\u003cp\u003eWhile overdark and heat enhanced, this sapphire weighs over two carats making it a solid entry level sapphire for new collectors looking to build their collections.\u003c\/p\u003e","brand":"otzera","offers":[{"title":"Default Title","offer_id":50983409746167,"sku":"6230574","price":350.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/2.30sapphire6.png?v=1786018865"},{"product_id":"3-83-carat-antique-yellow-chrysoberyl","title":"3.83 Carat Antique Yellow Chrysoberyl","description":"\u003cp\u003e\u003cstrong\u003eNatural · Unheated · Antique Modified Oval Cut\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBright, distinctive, and full of character, this natural yellow chrysoberyl embodies a pleasing yellow color with lively flashes of chartreuse, lemon, and golden yellow. Its elongated oval outline and antique modified brilliant cutting style give the stone a personality that feels less standardized than a modern commercial cut.\u003c\/p\u003e\n\u003cp\u003eWeighing \u003cstrong\u003e3.83 carats\u003c\/strong\u003e, the gemstone has substantial presence while maintaining an elegant, balanced face-up appearance. The deeper proportions contribute to concentrated color and create bold internal reflections as the stone moves through the light. Its slightly included clarity is consistent with a natural gemstone and does not diminish the overall visual impact of the stone.\u003c\/p\u003e\n\u003cp\u003eChrysoberyl is a distinct mineral species—not a variety of beryl—and is particularly valued by collectors for its brilliance, durability, and relative scarcity in strong, attractive colors. Yellow chrysoberyl is considerably less familiar to the public than sapphire or topaz, making this an appealing choice for a collector seeking something both beautiful and outside the conventional gemstone categories.\u003c\/p\u003e\n\u003cp\u003eMost importantly, the accompanying report states that there is \u003cstrong\u003eno evidence of heat treatment\u003c\/strong\u003e, preserving the gemstone’s natural color character. The combination of its vivid coloration, nearly four-carat weight, antique-style cutting, and untreated status gives this stone meaningful collector appeal.\u003c\/p\u003e\n\u003ch3\u003eWhy Otzera Selected It\u003c\/h3\u003e\n\u003cp\u003eThis chrysoberyl was selected for its unusually energetic color and distinctive cutting personality. It is not a quiet pastel stone: the vivid yellow body color is energized by a subtle green influence that produces a fresh, almost electric appearance. The antique modified oval cut adds individuality and reinforces the sense that this is a one-of-a-kind collectible rather than a standardized commercial gemstone.\u003c\/p\u003e\n\u003ch3\u003eGemstone Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone:\u003c\/strong\u003e Natural Yellow Chrysoberyl\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 3.83 carats\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 11.01 × 7.34 × 5.69 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eShape:\u003c\/strong\u003e Oval\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCutting Style:\u003c\/strong\u003e Antique Modified Brilliant\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eColor:\u003c\/strong\u003e Strong, Slightly Greenish Yellow\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eClarity:\u003c\/strong\u003e Slightly Included\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePolish:\u003c\/strong\u003e Very Good\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSymmetry:\u003c\/strong\u003e Good\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eProportions:\u003c\/strong\u003e Good\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOverall Cut Assessment:\u003c\/strong\u003e Well Made, Antique\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTable:\u003c\/strong\u003e 53%\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTotal Depth:\u003c\/strong\u003e 77.5%\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEnhancement:\u003c\/strong\u003e None detected; no evidence of heat\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCertification\u003c\/h3\u003e\n\u003cp\u003eAccompanied by \u003cstrong\u003eCarte Blu Report No. 44080113\u003c\/strong\u003e, issued by Professional Gem Sciences Laboratory on \u003cstrong\u003eMarch 5, 2020\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eCare and Handling\u003c\/h3\u003e\n\u003cp\u003eChrysoberyl is a durable gemstone suitable for jewelry use, although every loose gemstone should be protected from sharp impacts and abrasive contact. Clean gently with warm water, mild soap, and a soft brush. Avoid aggressive chemicals and have the stone examined by a qualified jeweler before setting.\u003c\/p\u003e","brand":"otzera","offers":[{"title":"Default Title","offer_id":50985739256055,"sku":"7485981","price":1775.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/otzera-3-83ct-yellow-chrysoberyl-face-up_7d36d658-372b-4d6f-a57d-909397e775c7.jpg?v=1789009789"},{"product_id":"4-20-carat-vivid-yellow-sapphire","title":"4.20 Carat Vivid Yellow Sapphire","description":"\u003cp\u003e\u003cstrong\u003eNatural · Clean · Very Well Made Oval Cut\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis exceptional natural yellow sapphire combines three qualities that are especially compelling to collectors: \u003cstrong\u003eintense color, clean clarity, and a well-proportioned cut at more than four carats\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIts primary color is described as \u003cstrong\u003evivid slightly orangish yellow\u003c\/strong\u003e, producing a rich, saturated appearance with flashes of golden yellow, amber, and warm citrus. The subtle orange influence adds depth and character, distinguishing the stone from lighter or more commercially common yellow sapphires. Its color is energetic and immediately noticeable, giving the gemstone a strong visual identity both at rest and in motion.\u003c\/p\u003e\n\u003cp\u003eWeighing \u003cstrong\u003e4.20 carats\u003c\/strong\u003e, the sapphire has substantial collector presence. Its balanced oval outline and mixed cutting style create a classic appearance while preserving the stone’s individual personality. The report assigns \u003cstrong\u003eVery Good\u003c\/strong\u003e grades for both symmetry and proportions, with an overall assessment of \u003cstrong\u003eVery Well Made\u003c\/strong\u003e—an important distinction for a gemstone of this size and depth.\u003c\/p\u003e\n\u003cp\u003eThe sapphire is graded \u003cstrong\u003eVery Slightly Included\u003c\/strong\u003e, resulting in an attractively clean face-up appearance. This clarity allows its vibrant color and internal brilliance to remain the dominant visual features, without distracting inclusions competing for attention. \u003c\/p\u003e\n\u003cp\u003eMost significantly, stone has great life to it. Its strong cutting are considerably more difficult to find than routine material. The combination of vivid color, size, transparency, and proportion gives this stone particularly strong desirability as a standalone collectible.\u003c\/p\u003e\n\u003ch3\u003eWhy Otzera Selected It\u003c\/h3\u003e\n\u003cp\u003eThis sapphire was selected for the completeness of its presentation. Many yellow sapphires offer either size, color, or clarity; this stone brings all three together in a well-made oval weighing more than four carats.\u003c\/p\u003e\n\u003cp\u003eIts vivid color is unusually expressive, while the clean clarity and balanced proportions allow that color to be appreciated without compromise. \u003c\/p\u003e\n\u003ch3\u003eGemstone Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone:\u003c\/strong\u003e Natural Yellow Sapphire\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMineral Species:\u003c\/strong\u003e Natural Corundum\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 4.20 carats\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 10.64 × 7.58 × 6.01 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eShape:\u003c\/strong\u003e Oval\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCutting Style:\u003c\/strong\u003e Mixed Cut\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eColor:\u003c\/strong\u003e Vivid Slightly Orangish Yellow\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eClarity:\u003c\/strong\u003e Very Slightly Included\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePolish:\u003c\/strong\u003e Good\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSymmetry:\u003c\/strong\u003e Very Good\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eProportions:\u003c\/strong\u003e Very Good\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOverall Cut Assessment:\u003c\/strong\u003e Very Well Made\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTable:\u003c\/strong\u003e 42%\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTotal Depth:\u003c\/strong\u003e 79.3%\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEnhancement:\u003c\/strong\u003e Standard Heat\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cstrong\u003eStability: \u003c\/strong\u003eExcellent\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCollector Appeal\u003c\/h3\u003e\n\u003cp\u003eThe sapphire’s desirability rests on the combination of its \u003cstrong\u003evivid yellow color, clean appearance, substantial weight, and successful cutting\u003c\/strong\u003e. At 4.20 carats, it has the scale to anchor a serious gemstone collection while remaining beautifully proportioned and visually refined.\u003c\/p\u003e\n\u003ch3\u003eCare and Handling\u003c\/h3\u003e\n\u003cp\u003eSapphire is one of the most durable natural gemstones and is well suited for jewelry use. Clean with warm water, mild soap, and a soft brush. Although resistant to everyday wear, the stone should still be protected from sharp impacts and abrasive contact. Have it examined by a qualified jeweler before setting.\u003c\/p\u003e","brand":"otzera","offers":[{"title":"Default Title","offer_id":50985774940407,"sku":"1547363","price":1895.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/4.20yellowsapphirea.png?v=1785415559"},{"product_id":"4-98-carat-antique-ceylon-yellow-sapphire","title":"4.98 Carat Antique Ceylon Yellow Sapphire","description":"\u003cp\u003e\u003cstrong\u003eNatural · Unheated · Sri Lankan Origin\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis natural yellow sapphire is a distinctive antique stone with the individuality and physical character that collectors often seek in older-cut gemstones. Weighing \u003cstrong\u003e4.98 carats\u003c\/strong\u003e, it displays a soft light-yellow color and is accompanied by a laboratory report identifying its geographic origin as \u003cstrong\u003eSri Lanka, historically known as Ceylon\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eRather than following the balanced proportions expected of a modern precision cut, the sapphire has a notably deep, bottom-heavy profile. Its \u003cstrong\u003e81.4% total depth\u003c\/strong\u003e concentrates a substantial portion of the stone’s weight below the girdle, giving it a pronounced three-dimensional presence. This is not a conventionally proportional cut, and its symmetry is graded Fair. However, for the right collector, these irregularities are part of its appeal: they preserve the personality of an earlier cutting tradition and distinguish the stone from more standardized contemporary sapphires.\u003c\/p\u003e\n\u003cp\u003eThe gemstone’s mixed oval cut, softly rounded outline, and substantial pavilion create an unmistakably individual appearance. It feels like a stone shaped around the original crystal rather than cut to conform to a modern commercial template.\u003c\/p\u003e\n\u003cp\u003eMost importantly, the sapphire is \u003cstrong\u003eunenhanced\u003c\/strong\u003e, with no evidence of heat treatment. Natural, unheated yellow sapphires from Sri Lanka are desirable to collectors who value geographic origin, traditional cutting, and minimal intervention.\u003c\/p\u003e\n\u003ch3\u003eWhy Otzera Selected It \u003c\/h3\u003e\n\u003cp\u003eThis sapphire was selected for its authenticity and character rather than technical perfection. Its collectible appeal rests on the combination of:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eAntique cutting character\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSri Lankan—Ceylon—origin\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNo evidence of heat treatment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eA substantial weight approaching five carats\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAn unusually deep profile that clearly separates it from conventional modern cuts\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe bulky pavilion is an honest and visible part of the stone. Some buyers may regard it as inefficient cutting, while others will appreciate it as the defining characteristic that gives the sapphire its individuality and historic feel.\u003c\/p\u003e\n\u003ch3\u003eJyotish and Traditional Setting Appeal\u003c\/h3\u003e\n\u003cp\u003eFor buyers interested in \u003cstrong\u003eJyotish gemstone traditions\u003c\/strong\u003e, the sapphire’s exceptional depth may be particularly appealing. Jyotish-style rings are often designed with an open back so that the gemstone can make direct contact with the wearer’s skin. Because this stone has a deep pavilion, it may lend itself naturally to that type of custom setting.\u003c\/p\u003e\n\u003cp\u003eWithin Jyotish tradition, yellow sapphire is associated with Jupiter and is worn in the belief that it supports prosperity, wisdom, positive energy, and good fortune. These are traditional spiritual and astrological beliefs rather than scientifically established effects.\u003c\/p\u003e\n\u003ch3\u003eGemstone Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone:\u003c\/strong\u003e Natural Yellow Sapphire\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMineral Species:\u003c\/strong\u003e Corundum\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 4.98 carats\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 9.75 × 7.98 × 6.50 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eShape:\u003c\/strong\u003e Oval\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCutting Style:\u003c\/strong\u003e Mixed Cut\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eColor:\u003c\/strong\u003e Light Yellow\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGeographic Origin:\u003c\/strong\u003e Sri Lanka (Ceylon)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePolish:\u003c\/strong\u003e Good\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSymmetry:\u003c\/strong\u003e Fair\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOverall Cut Assessment:\u003c\/strong\u003e Well Made\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTable:\u003c\/strong\u003e 45%\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTotal Depth:\u003c\/strong\u003e 81.4%\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEnhancement:\u003c\/strong\u003e None detected; no evidence of heat\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCertification\u003c\/h3\u003e\n\u003cp\u003eAccompanied by \u003cstrong\u003eCarte Blu Report No. 44080114\u003c\/strong\u003e, dated \u003cstrong\u003eSeptember 23, 2019\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eCare and Setting\u003c\/h3\u003e\n\u003cp\u003eSapphire is highly durable and suitable for regular jewelry wear. Because of this stone’s unusually deep pavilion, it should be evaluated by an experienced jeweler before setting. A custom mounting will likely provide the best balance of protection, comfort, and presentation, particularly when creating an open-backed Jyotish-style ring.\u003c\/p\u003e","brand":"otzera","offers":[{"title":"Default Title","offer_id":50985945858295,"sku":"9245174","price":1175.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/4.98YellowSapphire1.png?v=1785419359"},{"product_id":"4-52-carat-unheated-ceylon-purple-sapphire","title":"4.52 Carat Unheated Ceylon Purple Sapphire","description":"\u003cp\u003e\u003cstrong\u003eNatural · Sri Lankan Origin · Antique Cushion Mixed Cut \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis natural purple sapphire is a substantial and highly individual collector stone, weighing \u003cstrong\u003e4.52 carats\u003c\/strong\u003e and displaying a soft-to-moderate violet color. Its appeal lies not in modern cutting perfection, but in the combination of \u003cstrong\u003eunenhanced color, documented Sri Lankan origin, notable size, and authentic antique cutting character\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe sapphire was fashioned as an antique cushion-shaped mixed cut, with a deep profile and a gently irregular outline. Its proportions and facet arrangement reflect an earlier approach to gemstone cutting, when cutters often prioritized preserving as much valuable rough as possible rather than achieving the strict symmetry and standardized proportions expected today.\u003c\/p\u003e\n\u003cp\u003eAs a result, the stone shows some visible asymmetry and does not present with the uniform precision of a contemporary cushion cut. For collectors of older gemstones, however, these characteristics can be part of its charm. They give the sapphire a distinct identity and preserve evidence of the cutting decisions made around the original crystal.\u003c\/p\u003e\n\u003cp\u003eThe gemstone is graded \u003cstrong\u003eModerately Included\u003c\/strong\u003e, and some inclusions are visible without magnification. These natural internal features should be viewed as part of the stone’s individual character rather than concealed. While they affect transparency in certain areas, the sapphire retains an attractive violet appearance and a strong physical presence.\u003c\/p\u003e\n\u003cp\u003eMost importantly, the accompanying report identifies the stone as originating from \u003cstrong\u003eSri Lanka, historically known as Ceylon\u003c\/strong\u003e, one of the world’s most respected sapphire-producing regions. The report also states that there is \u003cstrong\u003eno gemological evidence of heat treatment\u003c\/strong\u003e. This combination of origin, untreated status, antique cutting, and weight above four carats gives the stone meaningful collector desirability.\u003c\/p\u003e\n\u003ch3\u003eWhy Otzera Selected It\u003c\/h3\u003e\n\u003cp\u003eThis sapphire was selected for the authenticity of its presentation. It is not a standardized modern gemstone, and that is precisely what makes it interesting.\u003c\/p\u003e\n\u003cp\u003eIts collectible qualities include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eA substantial weight of \u003cstrong\u003e4.52 carats\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDocumented \u003cstrong\u003eSri Lankan—or Ceylon—origin\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNo evidence of heat treatment\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAn antique cushion-shaped cutting style\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eVisible inclusions that confirm its natural character\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eA deep, weight-retaining cut shaped by traditional cutting priorities\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAn individual outline and facet pattern unlike mass-produced modern stones\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCollectors who appreciate historic cutting methods often value the features that modern cutters might attempt to remove. The slight irregularities, depth, and retained weight give this sapphire a sense of history and personality.\u003c\/p\u003e\n\u003ch3\u003eGemstone Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGemstone:\u003c\/strong\u003e Natural Purple Sapphire\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMineral Species:\u003c\/strong\u003e Corundum\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 4.52 carats\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMeasurements:\u003c\/strong\u003e 9.40 × 7.32 × 5.75 mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eShape:\u003c\/strong\u003e Antique Cushion\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCutting Style:\u003c\/strong\u003e Mixed Cut\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eColor:\u003c\/strong\u003e Moderate Violet\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eClarity:\u003c\/strong\u003e Moderately Included\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePolish:\u003c\/strong\u003e Good\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSymmetry:\u003c\/strong\u003e Good, with visible antique-cut irregularity\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOverall Cut Assessment:\u003c\/strong\u003e Well Made\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTable:\u003c\/strong\u003e 51%\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTotal Depth:\u003c\/strong\u003e 78.6%\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGeographic Origin:\u003c\/strong\u003e Sri Lanka (Ceylon)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEnhancement:\u003c\/strong\u003e None detected; no gemological evidence of heat\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCertification\u003c\/h3\u003e\n\u003cp\u003eAccompanied by \u003cstrong\u003eCarte Blu Report No. 44090126\u003c\/strong\u003e, dated \u003cstrong\u003eOctober 11, 2019\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eCare and Setting\u003c\/h3\u003e\n\u003cp\u003eSapphire is a durable gemstone suitable for jewelry, but this stone’s inclusions and antique proportions should be considered before setting. A protective custom mounting is recommended, particularly if the stone will be worn frequently. Clean with warm water, mild soap, and a soft brush, and avoid sharp impacts or aggressive ultrasonic cleaning unless the gemstone has first been examined by a qualified jeweler.\u003c\/p\u003e","brand":"otzera","offers":[{"title":"Default Title","offer_id":50986012049655,"sku":"8786352","price":2745.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/files\/purplesapphire.png?v=1786016839"},{"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":"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":"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":"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"}],"url":"https:\/\/otzera.com\/collections\/individual-gemstones.oembed?page=2","provider":"Otzera","version":"1.0","type":"link"}