{"product_id":"1-83-ct-cushion-shaped-natural-ruby-untreated-gia","title":"1.83 ct Natural Ruby, Madagascar – Cushion, Unheated | GIA Ruby Origin Report 6233835340","description":"\u003cp\u003e1.83 carat cushion ruby, measuring 6.62 × 6.19 × 5.03 mm, accompanied by GIA Ruby Origin Report #6233835340 dated 20 January 2026. The report records Color Purplish Red, Transparency Transparent, Species Natural Corundum, Variety Natural Ruby, two separate cutting-style fields, and an Additional Results field that reads No Indications of Heating. It gives Madagascar as the geographic origin, as an expert opinion.\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=\"\/en-gb\/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 one is a 1.83 carat cushion, and it comes with a GIA Ruby Origin Report whose fields you can read for yourself. It shows visible inclusions, including dark ones you can see in the report photograph. Ask me for more images and look at it before you decide.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eWhat the Report Records\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\n\u003cp\u003e\u003cstrong\u003eThe limit of our own reporting.\u003c\/strong\u003e We report the fields GIA printed on this document. Where we add a view of our own, such as the clarity assessment, the setting advice and the cleaning preference, we mark it as ours.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eRead it yourself.\u003c\/strong\u003e The report is reproduced in the images on this page, and GIA's own service at reportcheck.gia.edu returns the same fields against the report number. Check it there, and ask us for anything else you want to see before you buy.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGeographic origin.\u003c\/strong\u003e The Geographic Origin field reads Madagascar. In its Comments section, GIA prints: \"Any statement on geographic origin is an expert opinion based on a collection of observations and analytical data.\" We print the field and the caveat together and add nothing to either.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAdditional Results.\u003c\/strong\u003e The field reads No Indications of Heating. That is a finding about heat, and it is what we mean when we call this stone unheated.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCutting style, two fields.\u003c\/strong\u003e The report gives the crown and the pavilion separately: Crown: Modified Brilliant Cut, and Pavilion: Step Cut. The crown carries brilliant-style faceting; the pavilion carries step-style faceting.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eClarity.\u003c\/strong\u003e Inclusions are visible in this stone, including dark ones that can be seen in GIA's report photograph. That is our own assessment rather than a report value, because a GIA colored-stone report carries no clarity grade.\u003c\/p\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\u003eRead GIA Report #6233835340 against the stone.\u003c\/strong\u003e Check the report number, the carat weight, the measurements, the color, the transparency, both cutting-style fields and the Additional Results entry against the physical stone before you finalise the purchase.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLook at the whole face-up view.\u003c\/strong\u003e Ask us for more images and video and look at the whole face before you decide.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlan the setting around the stone's proportions.\u003c\/strong\u003e A cushion outline has rounded corners. We would choose a setting that holds the girdle securely all the way round; that is our own recommendation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eSpecies Characteristics\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThe three values below describe corundum as a mineral species. They are not findings about this individual stone. GIA prints them in the Characteristics panel of this report.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eMineral: Corundum\u003c\/li\u003e\n\u003cli\u003eMohs hardness: 9\u003c\/li\u003e\n\u003cli\u003eToughness: Excellent\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eSeparately, this report prints July as the birthstone month. July belongs to ruby.\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: 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;\"\u003eItem #\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eCG8338\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;\"\u003e1.83 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;\"\u003eMeasurements\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003e6.62 × 6.19 × 5.03 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;\"\u003eShape\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eCushion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eCutting Style (Crown)\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eModified Brilliant Cut\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eCutting Style (Pavilion)\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eStep Cut\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;\"\u003ePurplish Red\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\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\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eNatural 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;\"\u003eVariety\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eNatural Ruby\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee; font-weight: 600;\"\u003eGeographic Origin\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;\"\u003eAdditional Results\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px; border-bottom: 1px solid #e5d9ee;\"\u003eNo Indications of Heating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 6px 8px; font-weight: 600;\"\u003eLaboratory Report\u003c\/td\u003e\n\u003ctd style=\"padding: 6px 8px;\"\u003eGIA Report #6233835340\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eSKU: CG8338\u003c\/li\u003e\n\u003cli\u003eCarat Weight: 1.83 carats\u003c\/li\u003e\n\u003cli\u003eMeasurements: 6.62 × 6.19 × 5.03 mm\u003c\/li\u003e\n\u003cli\u003eShape: Cushion\u003c\/li\u003e\n\u003cli\u003eCutting Style, crown: Modified Brilliant Cut\u003c\/li\u003e\n\u003cli\u003eCutting Style, pavilion: Step Cut\u003c\/li\u003e\n\u003cli\u003eColor: Purplish Red\u003c\/li\u003e\n\u003cli\u003eTransparency: Transparent\u003c\/li\u003e\n\u003cli\u003eSpecies: Natural Corundum\u003c\/li\u003e\n\u003cli\u003eVariety: Natural Ruby\u003c\/li\u003e\n\u003cli\u003eGeographic Origin: Madagascar\u003c\/li\u003e\n\u003cli\u003eAdditional Results: No Indications of Heating\u003c\/li\u003e\n\u003cli\u003eLaboratory Report: GIA Report #6233835340\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cstrong\u003eCare\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cp\u003eGIA publishes its own cleaning guidance for ruby. We prefer warm soapy water and a soft brush to ultrasonic or steam cleaners, because we cannot see how a stone is held once it is set. That preference is ours, not a condition carried on the report.\u003c\/p\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\u003eOnce it is set, take it off for heavy physical work\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cstrong\u003eThis Stone\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cp\u003eThis is one individual natural gemstone, not laboratory-grown material. The stone you receive is the stone documented on GIA Report #6233835340.\u003c\/p\u003e\n\n\u003ch2\u003e\u003cstrong\u003eWhat's included with this Ruby\u003c\/strong\u003e\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eGIA Report #6233835340\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":42701345947715,"sku":"CG8338","price":2817.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/files\/1112023001_605e32fa-94a6-4628-bef2-71ed6b4b179e.jpg?v=1778308024","url":"https:\/\/crescentgems.com\/en-gb\/products\/1-83-ct-cushion-shaped-natural-ruby-untreated-gia","provider":"Crescent Gems","version":"1.0","type":"link"}