{"product_id":"1-65-ct-oval-ruby-unheated-madagascar-gia","title":"1.65 ct Natural Unheated Ruby – Oval Cut | GIA Report | Madagascar","description":"\u003cp\u003eA natural 1.65 ct oval ruby, \u003cstrong\u003eunheated\u003c\/strong\u003e: \u003cstrong\u003eGIA Ruby Origin Report #2245032085\u003c\/strong\u003e records No Indications of Heating and no filling. Ruby is corundum coloured by chromium — the same species as sapphire, but with enough chromium to carry the colour into the red range. Heat treatment is standard across the ruby trade, so an unheated stone above a carat with GIA documentation is an uncommon combination. The report records weight, dimensions, colour and cutting style, and gives \u003cstrong\u003eMadagascar\u003c\/strong\u003e as its origin opinion.\u003c\/p\u003e\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-cn\/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, GIA-documented, with no indications of heating on the report. Reaching for the furnace is the usual route in this trade, so a stone that comes back from the lab without that finding is one I am glad to have in the case.\"\u003c\/p\u003e\n\u003c\/div\u003e\u003ch2\u003eGood to Know\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMatch the report to the stone:\u003c\/strong\u003e confirm the report number, measurements and weight against the stone you receive.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e“Unheated” covers heating only\u003c\/strong\u003e — a lab finding, not a colour grade; judge colour and clarity yourself.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAsk about filling too:\u003c\/strong\u003e lead-glass filling is a separate treatment common in rubies — this report records none.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtect it:\u003c\/strong\u003e a prong or bezel that shields the girdle suits ring wear; expect a premium over heated material.\u003c\/li\u003e\n\u003c\/ul\u003e\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=\"\/en-cn\/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=\"\/en-cn\/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=\"\/en-cn\/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=\"\/en-cn\/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=\"\/en-cn\/blogs\/information-pages-complete-guide\/madagascar-sapphire-guide\"\u003eMadagascar Sapphire — The Modern Origin That Rivals Ceylon\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCare \u0026amp; What’s Included\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eClean with warm water, mild soap and a soft brush; store separately; avoid ultrasonic and steam cleaners.\u003c\/li\u003e\n\u003cli\u003eShips with GIA Ruby Origin Report #2245032085, packed in a gem sleeve.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Crescent Gems","offers":[{"title":"Default Title","offer_id":43488589283395,"sku":"CG8456","price":78180.95,"currency_code":"CNY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/files\/8456001.jpg?v=1783089221","url":"https:\/\/crescentgems.com\/en-cn\/products\/1-65-ct-oval-ruby-unheated-madagascar-gia","provider":"Crescent Gems","version":"1.0","type":"link"}