{"product_id":"1-63-ct-ceylon-orange-sapphire-gia","title":"1.63 ct Natural Heat-Treated Orange Sapphire – Oval Cut | GIA Certified | Sri Lanka (Ceylon)","description":"\u003cp\u003eA natural 1.63 ct Oval Cut Orange Sapphire from Sri Lanka (Ceylon), heat treated to bring out its vivid yellowish-orange color — a widely accepted and stable enhancement in the sapphire trade — measuring 7.71 × 6.46 × 4.45 mm. Orange sapphire is one of the less common color varieties of natural corundum, prized for its warm, glowing hue. Accompanied by GIA Report #1242032081, confirming weight, dimensions, color, and treatment; this stone also passed GIA’s color stability test, confirming the orange hue will not fade or change with prolonged light exposure.\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\"What stands out on this one isn't just the color — it's that GIA actually ran a color stability test on this stone and it passed. That's not a routine line item on most sapphire reports, and it tells a buyer this vivid yellowish-orange isn't going to shift or fade under normal wear. Combined with a well-cut oval that reads the color clean face-up, this is a stone I'd point a collector toward.\"\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\n\u003cp\u003eOrange sapphire is a genuinely uncommon color variety of corundum — the vast majority of sapphire production is blue, and clean, vivid orange without a strong pink or brown cast makes up a small slice of overall fancy-color sapphire supply.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Pure, vivid orange — without drifting toward pink (padparadscha territory) or brown — is one of the less common hues within fancy-color sapphire; this stone's yellowish-orange sits in that genuinely uncommon range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTreatment:\u003c\/strong\u003e Heat treatment is the standard, fully disclosed enhancement used throughout the trade to develop and stabilize orange sapphire color; what's uncommon here isn't the treatment itself but combining this saturation and clarity with independent lab verification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocumentation:\u003c\/strong\u003e GIA Report #1242032081 confirms weight, dimensions, color, and treatment — a level of independent verification a meaningful share of the orange sapphire market doesn't carry.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor stability testing:\u003c\/strong\u003e This stone passed GIA's color stability test, confirming its hue holds under prolonged light exposure — an additional check that most sellers don't offer or disclose.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCut:\u003c\/strong\u003e The oval Modified Brilliant faceting is chosen specifically to maximize face-up color and sparkle, which matters more for orange sapphire than for darker colors since a poorly cut stone can read washed out.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCombined effect:\u003c\/strong\u003e Individually, heat-treated orange sapphire is available in the market. A stone combining this specific hue, GIA documentation, a passed color stability test, and well-executed oval faceting narrows the field considerably.\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\n\u003cp\u003eA few practical points to weigh before purchasing this specific stone:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eView it under more than one light source.\u003c\/strong\u003e Orange sapphire's warmth can read differently under daylight versus warm indoor lighting; this stone's oval Modified Brilliant cut is faceted to keep the color even face-up across both.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerify the disclosed heat treatment through the GIA report, not a seller's word alone.\u003c\/strong\u003e GIA Report #1242032081 states the heat treatment plainly — treat any comparable listing that omits or is vague about treatment as a red flag.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnderstand that heat treatment here is stable and permanent.\u003c\/strong\u003e It doesn't affect durability, and it's the standard, industry-accepted way this color family is brought to market — it isn't a mark against the stone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAsk about the color stability test result if comparing against other orange sapphires.\u003c\/strong\u003e Not every report includes this check; this stone's does, and it passed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlan the setting around the oval outline and 7.71 × 6.46 × 4.45 mm footprint\u003c\/strong\u003e so prongs sit correctly at the stone's points.\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\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/crescentgems.com\/blogs\/information-pages-complete-guide\/orange-sapphire-buyers-guide\"\u003eOrange Sapphire — The Complete Buyer's Guide to the Rarest Warm-Toned Corundum\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/crescentgems.com\/blogs\/information-pages-complete-guide\/ceylon-sapphire-complete-guide\"\u003eCeylon Sapphire: The Complete Guide to the World's Most Trusted Sapphire Origin\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/crescentgems.com\/blogs\/information-pages-complete-guide\/how-sapphire-heat-treatment-works\"\u003eHow Sapphire Heat Treatment Works\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 Sapphire 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 Sapphire — The Complete Guide to the Most Popular Sapphire Cut\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/crescentgems.com\/blogs\/information-pages-complete-guide\/sapphire-buying-guide\"\u003eThe Ultimate Guide to Buying Natural Loose Sapphires\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 style=\"width: 100%; border-collapse: collapse; font-size: 0.95em;\"\u003e\n\u003ctbody\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;\"\u003eCG8454\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;\"\u003e1.63 ct\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;\"\u003eCorundum — Orange Sapphire\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, Modified 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;\"\u003e7.71 × 6.46 × 4.45 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;\"\u003eYellowish Orange\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;\"\u003eHeat Treated (disclosed on GIA report)\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;\"\u003eSri Lanka (Ceylon)\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;\"\u003eSlightly Included\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 #1242032081\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eWhy Choose this Oval Cut Orange Sapphire?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cp\u003eNatural orange sapphire is one of the rarer color varieties of corundum, valued by collectors and jewelry buyers for its warm, vivid glow. The oval cut's brilliant faceting maximizes the stone's face-up color and sparkle, making the orange hue clearly readable in any ring or pendant setting.\u003c\/p\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eKey Benefits of this Natural 1.63 ct Oval Cut Orange Sapphire\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGIA Documentation\u003c\/strong\u003e\u003cbr\u003eGIA Report #1242032081 confirms weight, dimensions, and treatment status.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRare Orange Color\u003c\/strong\u003e\u003cbr\u003eOrange sapphire is one of the less common color varieties of natural corundum.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor Stability Tested\u003c\/strong\u003e\u003cbr\u003ePassed GIA's color stability test, confirming the orange hue will not fade or change with prolonged light exposure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStatement Size\u003c\/strong\u003e\u003cbr\u003eAt 1.63 carats the vivid orange has strong visual presence in any jewelry setting.\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\n\u003cul\u003e\n\u003cli\u003eItem #: CG8454\u003c\/li\u003e\n\u003cli\u003eCarat Weight: 1.63 ct\u003c\/li\u003e\n\u003cli\u003eSpecies \/ Variety: Corundum — Orange Sapphire\u003c\/li\u003e\n\u003cli\u003eShape \/ Cut: Oval, Modified Brilliant\u003c\/li\u003e\n\u003cli\u003eDimensions: 7.71 × 6.46 × 4.45 mm\u003c\/li\u003e\n\u003cli\u003eColor \/ Intensity: Yellowish Orange\u003c\/li\u003e\n\u003cli\u003ePhenomenon: None\u003c\/li\u003e\n\u003cli\u003eTreatment: Heat Treated (disclosed on GIA report)\u003c\/li\u003e\n\u003cli\u003eOrigin: Sri Lanka (Ceylon)\u003c\/li\u003e\n\u003cli\u003eClarity: Slightly Included\u003c\/li\u003e\n\u003cli\u003eTransparency: Transparent\u003c\/li\u003e\n\u003cli\u003eHardness: 9 (Mohs)\u003c\/li\u003e\n\u003cli\u003eCertification: GIA Report #1242032081\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eCare of Your Ceylon Orange Sapphire\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\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\n\u003cul\u003e\n\u003cli\u003eGIA Report #1242032081\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 1.63 ct Orange Sapphire\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eStatement cocktail ring center stone\u003c\/li\u003e\n\u003cli\u003eEngagement ring center stone in yellow or rose gold\u003c\/li\u003e\n\u003cli\u003eCustom pendant commission\u003c\/li\u003e\n\u003cli\u003eCollectors of GIA-documented orange sapphire\u003c\/li\u003e\n\u003cli\u003eDistinctive fine jewelry centerpiece\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Crescent Gems","offers":[{"title":"Default Title","offer_id":43507790184515,"sku":"CG8454","price":2445.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/files\/8454001.jpg?v=1783578737","url":"https:\/\/crescentgems.com\/products\/1-63-ct-ceylon-orange-sapphire-gia","provider":"Crescent Gems","version":"1.0","type":"link"}