{"product_id":"1-82-ct-ceylon-yellow-sapphire-gemstone","title":"1.81 ct Natural Unheated Yellow Sapphire – Radiant Cut | GIA Certified | Sri Lanka (Ceylon)","description":"\u003cp\u003eA 1.81 carat yellow sapphire from Sri Lanka, unheated, accompanied by GIA Sapphire Origin Report #1242017778. The report prints the species as Natural Corundum and the variety as Natural Sapphire, the color as Yellow, the shape as Octagonal and the cutting style as Modified Brilliant Cut — the combination the trade calls a radiant. Under Additional Results it records No Indications of Heating, and it carries the printed comment \"This stone passed GIA's color stability test.\"\u003c\/p\u003e\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=\"\/fr-eg\/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 stone is what sits on one GIA report: Sri Lanka in the Geographic Origin field, No Indications of Heating under Additional Results, and the printed comment that the stone passed GIA's color stability test.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eAbout This Stone\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eWhat the GIA report records, and what on this page is our own description:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e The report prints the color as Yellow — plain, with no qualifier. GIA issues no color grade on a colored-stone report, and we quote none.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 1.81 carats, measuring 7.53 × 4.92 × 4.90 mm. That is a length-to-width ratio of about 1.53 to 1 — our own arithmetic from the measurements the report prints.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape and cut:\u003c\/strong\u003e The report prints Shape: Octagonal and Cutting Style: Modified Brilliant Cut — a rectangular, cut-corner outline finished throughout with brilliant faceting. The trade calls that combination a radiant; the trade name is ours, not the report's.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTreatment:\u003c\/strong\u003e Under Additional Results the report records No Indications of Heating. That is a finding about heat alone, and we describe the stone as unheated on that basis; we make no statement about any other treatment class.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor stability:\u003c\/strong\u003e The report carries the printed comment \"This stone passed GIA's color stability test.\" We quote the comment and claim nothing beyond it: like No Indications of Heating, it records what GIA observed under its own method.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e The report's Geographic Origin field prints Sri Lanka, and GIA prints its own caveat with it: \"Any statement on geographic origin is an expert opinion based on a collection of observations and analytical data.\" A place of origin is not a measure of quality; we use Ceylon as a name for the source, never as a grade.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClarity:\u003c\/strong\u003e Very Very Slightly Included — our own assessment, not a GIA grade. GIA colored-stone reports carry no clarity grade.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocumentation:\u003c\/strong\u003e GIA Sapphire Origin Report #1242017778, dated August 03, 2026. The report number can be checked at reportcheck.gia.edu.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eBuying Guidance\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eA few practical points to weigh before purchasing this specific stone:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eView it in both daylight and warm indoor lighting.\u003c\/strong\u003e Yellow sapphires can read slightly differently between light sources, so it is worth seeing the stone under the light you expect to wear it in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlan the setting around its 7.53 × 4.92 × 4.90 mm octagonal outline.\u003c\/strong\u003e The cornered rectangular shape benefits from prongs or a setting style that protects the corners.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIf you are comparing other yellow sapphires, ask for the treatment disclosure on the lab report.\u003c\/strong\u003e This stone's GIA report records No Indications of Heating in writing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactor the documentation into the comparison.\u003c\/strong\u003e This report states the origin determination, the heat finding and the color-stability comment in one document, and the report number can be checked at reportcheck.gia.edu.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIf you are sourcing an unheated stone for Jyotish (Vedic astrology) use,\u003c\/strong\u003e the heat finding you are looking for is printed on the document: No Indications of Heating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse the Try Before You Buy option\u003c\/strong\u003e if you would like to see the stone in hand before finalizing the purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\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;\"\u003eCG8419\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eCarat Weight\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003e1.81 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;\"\u003eSpecies \/ Variety\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eNatural Corundum \/ Natural Sapphire (as printed on GIA Report #1242017778)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eShape \/ Cutting Style\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eOctagonal \/ Modified Brilliant Cut (as printed on GIA Report #1242017778) — the trade's name for this combination is a radiant, and that name is ours, not the report's\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eDimensions\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003e7.53 x 4.92 x 4.90 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;\"\u003eColor\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eYellow (as printed on GIA Report #1242017778)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eTreatment\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eUnheated — GIA Report #1242017778 records \"No Indications of Heating\" under Additional Results\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eOrigin\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eSri Lanka (Ceylon) — GIA Report #1242017778 prints its own caveat: \"Any statement on geographic origin is an expert opinion based on a collection of observations and analytical data.\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eClarity\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eVery Very Slightly Included — our own assessment; GIA colored-stone reports carry no clarity grade\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eTransparency\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eTransparent (as printed on GIA Report #1242017778)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eHardness\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003e9 (Mohs) — the report's Characteristics panel lists this for corundum as a species\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; font-weight: 600;\"\u003eCertification\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px;\"\u003eGIA Sapphire Origin Report #1242017778\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSKU: CG8419\u003c\/li\u003e\n\u003cli\u003eCarat Weight: 1.81 carats\u003c\/li\u003e\n\u003cli\u003eDimensions: 7.53 × 4.92 × 4.90 mm\u003c\/li\u003e\n\u003cli\u003eSpecies: Natural Corundum (as printed on GIA Report #1242017778)\u003c\/li\u003e\n\u003cli\u003eVariety: Natural Sapphire (as printed on GIA Report #1242017778)\u003c\/li\u003e\n\u003cli\u003eShape: Octagonal (as printed on GIA Report #1242017778)\u003c\/li\u003e\n\u003cli\u003eCutting Style: Modified Brilliant Cut (as printed on GIA Report #1242017778)\u003c\/li\u003e\n\u003cli\u003eTrade name for that shape and cutting style: radiant — our term, not the report's\u003c\/li\u003e\n\u003cli\u003eColor: Yellow (as printed on GIA Report #1242017778)\u003c\/li\u003e\n\u003cli\u003eTransparency: Transparent (as printed on GIA Report #1242017778)\u003c\/li\u003e\n\u003cli\u003eGeographic Origin: Sri Lanka (as printed on GIA Report #1242017778)\u003c\/li\u003e\n\u003cli\u003eAdditional Results: No Indications of Heating (as printed on GIA Report #1242017778) — the stone is unheated\u003c\/li\u003e\n\u003cli\u003ePrinted comment: \"This stone passed GIA's color stability test.\"\u003c\/li\u003e\n\u003cli\u003eClarity: Very Very Slightly Included — our own assessment, not a GIA grade\u003c\/li\u003e\n\u003cli\u003eHardness: 9 on the Mohs scale — listed on the report for corundum as a species\u003c\/li\u003e\n\u003cli\u003eCertification: GIA Sapphire Origin Report #1242017778\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eCare of Ceylon yellow sapphire gemstone\u003c\/strong\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\u003ch2\u003e\u003cstrong\u003eWhat's included\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGIA Sapphire Origin Report #1242017778\u003c\/li\u003e\n\u003cli\u003eGemstone packed in a gem sleeve\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Crescent Gems","offers":[{"title":"Default Title","offer_id":43031651549251,"sku":"CG8419","price":1820.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/files\/1112023001_c4894ad9-44ca-4861-8231-6ef2c921b5d5.jpg?v=1778308063","url":"https:\/\/crescentgems.com\/fr-eg\/products\/1-82-ct-ceylon-yellow-sapphire-gemstone","provider":"Crescent Gems","version":"1.0","type":"link"}