{"product_id":"1-65-ct-oval-ruby-unheated-madagascar-gia","title":"1.65 ct Natural Unheated Ruby – Oval Cut | GIA Certified | Madagascar","description":"\u003cp\u003eA natural 1.65 ct Oval Ruby from Madagascar, completely unheated — no indications of heating per GIA. Ruby is natural corundum colored by chromium — the same mineral species as sapphire, but with enough chromium that the color enters the red range rather than remaining pink. Unheated ruby above 1 carat with GIA documentation is a genuinely scarce combination, since the overwhelming majority of ruby on the market is heat treated. GIA Report #2245032085 confirms weight, dimensions, origin, and treatment status.\u003c\/p\u003e\n\n\u003cdiv style=\"border: 2px solid #5b2c6f; border-radius: 10px; padding: 20px 24px; margin: 28px 0; background-color: #f9f5fc;\"\u003e\n\u003ch2 style=\"margin-top: 0; margin-bottom: 12px; color: #4a235a;\"\u003eExpert Opinion\u003c\/h2\u003e\n\u003cp style=\"font-weight: 600; margin-bottom: 6px;\"\u003e\u003ca href=\"https:\/\/crescentgems.com\/pages\/ahmed-shareek-about-the-owner\" style=\"color: #4a235a; text-decoration: underline;\"\u003eAhmed Shareek\u003c\/a\u003e's Assessment\u003c\/p\u003e\n\u003cp style=\"font-style: italic; margin-bottom: 0;\"\u003e\"This is one of the more honest ruby purchases you can make — a 1.65 carat oval that's fully unheated and GIA-documented, with saturation that doesn't need a furnace to get there. Stones like this rarely cross a carat without someone reaching for a torch first, so when one does, it earns its place in a collection.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eRarity Analysis\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eSeveral factors compound to make this specific stone unusual, not just desirable:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnheated Status:\u003c\/strong\u003e The vast majority of ruby sold worldwide is heat treated to improve color and clarity — untreated material is the exception, not the rule.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarat Weight Threshold:\u003c\/strong\u003e Untreated ruby becomes progressively harder to find as size increases, since larger rough with naturally good color and clarity is rarely left untreated by cutters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGIA Documentation:\u003c\/strong\u003e Most ruby on the market — heated or not — is never submitted for independent lab analysis. A GIA report stating \"no indications of heating\" is a further narrowing of an already small pool.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMadagascar Origin:\u003c\/strong\u003e Madagascar is a significant modern ruby source, but fine untreated material in commercial quantity remains limited relative to the broader heated supply.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEye-Clean Clarity:\u003c\/strong\u003e Eye-clean clarity combined with unheated status and rich color saturation is a combination rarely found together in a single stone.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eBuying Guidance\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eA few things worth checking before buying any unheated, GIA-documented ruby like this one:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMatch the report to the stone:\u003c\/strong\u003e Confirm the GIA report number, measurements, and weight listed on the certificate match the physical stone you receive.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnderstand what \"unheated\" means:\u003c\/strong\u003e GIA's \"no indications of heating\" is a laboratory finding based on internal features, not a guarantee of subjective color quality — evaluate the stone's color and clarity for yourself alongside the report.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChoose a protective setting:\u003c\/strong\u003e A rare, untreated stone is worth protecting — prong or bezel settings that shield the girdle and pavilion from daily impact are a sensible choice for ring use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpect a premium over heated material:\u003c\/strong\u003e Unheated ruby with GIA documentation commands a meaningfully higher price per carat than comparable heated stones — that premium reflects genuine scarcity, not markup alone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuy from a seller who discloses treatment plainly:\u003c\/strong\u003e Treatment status should be stated clearly and match the lab report — be cautious of listings that are vague about heating.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eLearn More About This Gemstone\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/crescentgems.com\/blogs\/information-pages-complete-guide\/ruby-buyers-guide\"\u003eRuby — The Complete Buyer's Guide to the World's Most Valuable Colored Gemstone\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/crescentgems.com\/blogs\/information-pages-complete-guide\/spinel-buyers-guide\"\u003eSpinel — The Collector's Guide to the World's Most Undervalued Gemstone\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/crescentgems.com\/blogs\/information-pages-complete-guide\/what-is-a-gia-sapphire-report-and-how-do-you-read-one\"\u003eWhat Is a GIA Report and How Do You Read One?\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/crescentgems.com\/blogs\/information-pages-complete-guide\/oval-sapphire-guide\"\u003eOval Cut — The Complete Guide to the Most Popular Gemstone Cut\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/crescentgems.com\/blogs\/information-pages-complete-guide\/madagascar-sapphire-guide\"\u003eMadagascar — The Modern Gemstone Origin That Rivals Ceylon\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"border: 2px solid #5b2c6f; border-radius: 10px; padding: 20px 24px; margin: 28px 0; background-color: #f9f5fc;\"\u003e\n\u003ch2 style=\"margin-top: 0; margin-bottom: 14px; color: #4a235a;\"\u003eGemstone Data — At a Glance\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600; width: 42%;\"\u003eItem #\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eCG8456\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600; width: 42%;\"\u003eCarat Weight\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003e1.65 Carats\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600; width: 42%;\"\u003eSpecies\/Variety\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eNatural Ruby (Corundum)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600; width: 42%;\"\u003eShape\/Cut\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eOval \/ Mixed Brilliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600; width: 42%;\"\u003eDimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003e7.77 x 5.98 x 4.39 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600; width: 42%;\"\u003eColor\/Intensity\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eRed \/ Intense\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600; width: 42%;\"\u003ePhenomenon\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600; width: 42%;\"\u003eTreatment\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eNone — Unheated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600; width: 42%;\"\u003eOrigin\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eMadagascar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600; width: 42%;\"\u003eClarity\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eEye-clean — no visible inclusions under normal viewing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600; width: 42%;\"\u003eTransparency\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eTransparent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600; width: 42%;\"\u003eHardness\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003e9 Mohs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; font-weight: 600; width: 42%;\"\u003eCertification\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px;\"\u003eGIA Report #2245032085\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eWhy Choose this 1.65 ct Unheated Oval Ruby?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eThe GIA report on this stone provides the independent documentation that distinguishes a verified, unheated ruby from an unsubstantiated claim. Ruby is one of the most commercially misrepresented colored gemstones — heat-treated material is routinely sold without disclosure, and pink sapphires, red spinels, and low-quality material are sometimes sold as ruby entirely. A GIA report resolves the ambiguity: it confirms the material is natural corundum of ruby color, weight, dimensions, and origin, with treatment status stated explicitly as untreated.\u003c\/p\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eKey Benefits of this Natural Unheated Ruby\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGIA-Documented Ruby\u003c\/strong\u003e\u003cbr\u003eIndependent confirmation of species, weight, dimensions, origin, and treatment status.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompletely Unheated\u003c\/strong\u003e\u003cbr\u003eNo indications of heating per GIA — a rare and highly sought-after distinction for ruby.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMadagascar Origin\u003c\/strong\u003e\u003cbr\u003eMadagascar is a significant modern source of fine natural ruby.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOval Cut Versatility\u003c\/strong\u003e\u003cbr\u003eThe most practical ruby shape for engagement rings and pendants.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable for Daily Wear\u003c\/strong\u003e\u003cbr\u003eCorundum at Mohs 9, second only to diamond.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eItem #: CG8456\u003c\/li\u003e\n\u003cli\u003eCarat Weight: 1.65 Carats\u003c\/li\u003e\n\u003cli\u003eGem Type: Natural Ruby (Corundum)\u003c\/li\u003e\n\u003cli\u003eCut: Oval \/ Mixed Brilliant\u003c\/li\u003e\n\u003cli\u003eDimensions: 7.77 x 5.98 x 4.39mm\u003c\/li\u003e\n\u003cli\u003eOrigin: Madagascar\u003c\/li\u003e\n\u003cli\u003eTreatment: None — Unheated\u003c\/li\u003e\n\u003cli\u003eColor: Red \/ Intense\u003c\/li\u003e\n\u003cli\u003eClarity: Eye-clean — no visible inclusions under normal viewing\u003c\/li\u003e\n\u003cli\u003eTransparency: Transparent\u003c\/li\u003e\n\u003cli\u003eHardness: 9 on the Mohs scale\u003c\/li\u003e\n\u003cli\u003eCertification: GIA Report #2245032085\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eCare of Your Madagascar Ruby\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eClean with lukewarm water and mild soap using a soft brush\u003c\/li\u003e\n\u003cli\u003eStore separately to avoid surface contact\u003c\/li\u003e\n\u003cli\u003eRemove before heavy physical activity\u003c\/li\u003e\n\u003cli\u003eAvoid ultrasonic or steam cleaners\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGIA Report #2245032085\u003c\/li\u003e\n\u003cli\u003eGemstone packed in a gem sleeve\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003ePerfect Uses for this 1.65 ct Ruby\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eEngagement ring center stone\u003c\/li\u003e\n\u003cli\u003eStatement pendant or cocktail ring\u003c\/li\u003e\n\u003cli\u003eCollectors of GIA-documented unheated natural ruby\u003c\/li\u003e\n\u003cli\u003eJuly birthstone gift\u003c\/li\u003e\n\u003cli\u003eAnniversary or romantic milestone gift\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Crescent Gems","offers":[{"title":"Default Title","offer_id":43488589283395,"sku":"CG8456","price":11550.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/files\/8456001.jpg?v=1783089221","url":"https:\/\/crescentgems.com\/products\/1-65-ct-oval-ruby-unheated-madagascar-gia","provider":"Crescent Gems","version":"1.0","type":"link"}