{"title":"Sapphire","description":"\u003cp\u003eSapphire is one of the world's most recognized colored gemstones. Its name immediately suggests blue, but sapphire occurs in an extraordinary range of colors — from pink, yellow and green to purple, orange and colorless.\u003c\/p\u003e\u003cp\u003eEvery sapphire below has been selected for the quality of its color first. Weight, origin and treatment history are disclosed on each listing.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/pages\/sapphire\"\u003e\u003cstrong\u003eRead our full sapphire guide →\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","products":[{"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":"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":"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":"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"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/9999\/6919\/collections\/1.27sapphirecambodia.png?v=1785395361","url":"https:\/\/otzera.com\/collections\/sapphire.oembed","provider":"Otzera","version":"1.0","type":"link"}