{"title":"Ruby","description":"\u003cp\u003eRuby is the red variety of corundum and among the rarest and most valuable of all colored gemstones. Its value comes not simply from being red, but from the balance of color, brightness, transparency, size, treatment and origin.\u003c\/p\u003e\u003cp\u003eEvery ruby 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\/ruby\"\u003e\u003cstrong\u003eRead our full ruby guide →\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","products":[{"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":"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":"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"}],"url":"https:\/\/otzera.com\/collections\/ruby.oembed","provider":"Otzera","version":"1.0","type":"link"}