{"title":"Ruby Gemstones - Loose Stones with GIA Reports Available","description":"\u003cp\u003eRuby is the red variety of corundum, the same mineral species as \u003ca href=\"\/en-kw\/collections\/all-sapphire-gemstones\"\u003esapphire\u003c\/a\u003e; chromium gives it its red color. Each ruby here is listed individually, with its own photographs, video and laboratory report details on its product page. For rubies over 1 carat with GIA reports, see our \u003ca href=\"\/en-kw\/collections\/natural-ruby-over-1-carat-loose-stones-with-gia\"\u003eruby over 1 carat collection\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eWhat Each Listing Tells You\u003c\/h2\u003e\n\n\u003cp\u003eEvery product page sets out the details of that stone's laboratory report, such as weight, measurements, shape, cutting style and color. Each listing states whether the stone is heated. Where the stone's laboratory report carries a treatment entry, we give it exactly as printed. Where a stone has a GIA report, its listing gives the report number; where a stone has a report from another laboratory, its listing names that laboratory.\u003c\/p\u003e\n\n\u003ch2\u003eOrigin\u003c\/h2\u003e\n\n\u003cp\u003eWhere a GIA report gives a geographic origin, the listing prints it together with GIA's caveat that any statement on geographic origin is an expert opinion. Where a stone's report gives no origin opinion, the listing says so, and any origin we name is our own sourcing record, not a laboratory finding.\u003c\/p\u003e\n\n\u003ch2\u003eChoosing a Ruby for Jewelry\u003c\/h2\u003e\n\n\u003cp\u003eEvery ruby here is sold loose, so your own jeweler can set it in a ring or a pendant. Plan the setting around the individual stone's measurements, which are on its listing. Ask us for more images or video of any stone before you decide, and where a stone has a GIA report, check its number on GIA's own Report Check service at reportcheck.gia.edu.\u003c\/p\u003e\n\n\u003cp\u003eEmail \u003ca href=\"mailto:crescentgems@gmail.com\"\u003ecrescentgems@gmail.com\u003c\/a\u003e. Returns within 14 days; see our \u003ca href=\"\/en-kw\/policies\/refund-policy\"\u003erefund policy\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eRelated: \u003c\/em\u003e\u003ca href=\"\/en-kw\/collections\/natural-ruby-over-1-carat-loose-stones-with-gia\"\u003e\u003cem\u003eRuby over 1 carat\u003c\/em\u003e\u003c\/a\u003e\u003cem\u003e - \u003c\/em\u003e\u003ca href=\"\/en-kw\/collections\/pink-sapphire-gemstones-unheated-ceylon-loose-stones\"\u003e\u003cem\u003ePink sapphire\u003c\/em\u003e\u003c\/a\u003e\u003cem\u003e - \u003c\/em\u003e\u003ca href=\"\/en-kw\/collections\/gia-certified-stones\"\u003e\u003cem\u003eStones with GIA reports\u003c\/em\u003e\u003c\/a\u003e\u003cem\u003e - \u003c\/em\u003e\u003ca href=\"\/en-kw\/collections\/all-sapphire-gemstones\"\u003e\u003cem\u003eAll sapphires\u003c\/em\u003e\u003c\/a\u003e\u003c\/p\u003e","products":[{"product_id":"0-52-ct-round-ruby-gemstone-heat-treated","title":"0.52 ct Natural Heated Ruby – Round Cut | Sri Lanka","description":"\u003cp\u003eA natural 0.52 carat ruby gemstone in a 4.60 mm round, modified round brilliant cut — a precision-faceted shape that maximizes the stone's natural radiance and fire. The expertly faceted surface captures and disperses light with remarkable precision, producing a vivid interplay of brilliance and scintillation. A refined choice for those seeking a high-quality natural ruby that combines aesthetic beauty with gemological integrity.\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-kw\/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 0.52 ct round ruby shows a vivid, saturated red typical of fine Sri Lankan material, with strong pleochroism between red and orangy-red that gives the stone visible depth as it moves under light.\"\u003c\/p\u003e\n\u003c\/div\u003e\u003ch2\u003eGood to Know\u003c\/h2\u003e\u003cp\u003eA few practical points to weigh before purchasing this specific stone:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eView the stone in daylight and under warm indoor lighting —\u003c\/strong\u003e ruby's red can shift noticeably in tone between the two, and a vivid stone like this one should hold its saturation in both.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAt 4.60mm round,\u003c\/strong\u003e this stone fits a standard round solitaire or halo head sized for a 0.50 ct diamond equivalent, without custom fabrication.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhen comparison-shopping,\u003c\/strong\u003e confirm treatment status and lab source in writing — heat treatment is standard for ruby, but undisclosed treatments such as glass-filling or diffusion are common at the lower end of the market and should be ruled out.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeigh the scarcity noted above,\u003c\/strong\u003e since vivid-red ruby at any carat weight is harder to source consistently than lighter pinkish-red material, regardless of this stone's compact size.\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\u003ch2\u003e\u003cspan role=\"text\"\u003e\u003cstrong\u003eLearn More About This Gemstone\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/en-kw\/blogs\/information-pages-complete-guide\/ruby-buyers-guide\"\u003eRuby Buyer's Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-kw\/blogs\/information-pages-complete-guide\/what-is-a-gia-sapphire-report-and-how-do-you-read-one\"\u003eGIA Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-kw\/blogs\/information-pages-complete-guide\/how-to-commission-custom-sapphire-ring\"\u003eCustom Ring Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-kw\/blogs\/information-pages-complete-guide\/sapphire-buying-guide\"\u003eGeneral Gemstone Buying Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-kw\/blogs\/information-pages-complete-guide\/how-to-care-for-a-sapphire-engagement-ring-cleaning-storage-and-what-to-avoid\"\u003eHow to Care for a Corundum Engagement Ring\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/en-kw\/blogs\/information-pages-complete-guide\/how-to-spot-fake-sapphire\"\u003eHow to Spot a Fake Gemstone\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Crescent Gems","offers":[{"title":"Default Title","offer_id":42673261019203,"sku":"CG8140","price":900.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/files\/stone_CG8140_image-1.jpg?v=1778308013"},{"product_id":"1-carat-ruby-1-17-ct-natural-oval-gia-lab-report","title":"1.17 ct Natural Ruby – Oval, Heated | GIA Ruby Report","description":"\u003cp\u003eA natural 1.17 ct ruby, Oval, \u003cstrong\u003eheat-treated\u003c\/strong\u003e, measuring 7.46 × 4.95 × 3.77 mm, on \u003cstrong\u003eGIA Ruby Report #6233771189\u003c\/strong\u003e (12 Nov 2025). GIA records Variety Ruby, Colour Red and a Treatment entry of \u003cstrong\u003eHeated\u003c\/strong\u003e; its Geographic Origin reads Not Requested.\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-kw\/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 1.17 carat oval, and it comes with a GIA Ruby Report whose fields you can read for yourself. Face-up it looks eye-clean to me. Ask me for more images and look at it before you decide.\"\u003c\/p\u003e\n\u003c\/div\u003e\u003ch2\u003eGood to Know\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerify it:\u003c\/strong\u003e run report #6233771189 through GIA’s Report Check before buying.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat is disclosed\u003c\/strong\u003e on the report — the standard route, not a mark against the stone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAsk about filling as well as heating\u003c\/strong\u003e — a separate treatment common in rubies; this report addresses heating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin was not requested,\u003c\/strong\u003e so GIA names no country for it.\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 Report #6233771189, packed in a gem sleeve.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Crescent Gems","offers":[{"title":"Default Title","offer_id":42700447219779,"sku":"CG8250","price":3600.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/files\/1112023001_f8973359-0a50-4a18-861a-96ae8b0c08c9.jpg?v=1778308014"},{"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\u003eA natural 1.83 ct ruby, Cushion, \u003cstrong\u003eunheated\u003c\/strong\u003e, measuring 6.62 × 6.19 × 5.03 mm, on \u003cstrong\u003eGIA Ruby Origin Report #6233835340\u003c\/strong\u003e (20 Jan 2026). GIA records Variety Natural Ruby, Colour Purplish Red and Additional Results \u003cstrong\u003eNo Indications of Heating\u003c\/strong\u003e, 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-kw\/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\u003ch2\u003eGood to Know\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerify it:\u003c\/strong\u003e run report #6233835340 through GIA’s Report Check before buying.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnheated covers heating only;\u003c\/strong\u003e ask any seller which treatments their document addresses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAsk about filling as well as heating\u003c\/strong\u003e — a separate treatment common in rubies; this report addresses heating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin is GIA’s expert opinion\u003c\/strong\u003e (Madagascar), printed with the usual disclaimer.\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 #6233835340, 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":3700.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/files\/1112023001_605e32fa-94a6-4628-bef2-71ed6b4b179e.jpg?v=1778308024"},{"product_id":"1-carat-ruby-1-09-ct-emerald-cut-natural-gia-report","title":"1.09 ct Natural Ruby, Madagascar – Octagonal Step Cut (Emerald Cut), Heated | GIA Ruby Origin Report 5232922092","description":"\u003cp\u003eA natural 1.09 ct ruby, Octagonal Step Cut (the trade calls it an emerald cut), \u003cstrong\u003eheat-treated\u003c\/strong\u003e, measuring 7.43 × 5.16 × 2.69 mm, on \u003cstrong\u003eGIA Ruby Origin Report #5232922092\u003c\/strong\u003e (16 April 2026). GIA records Variety Ruby, Colour Red and Additional Results \u003cstrong\u003eHeated\u003c\/strong\u003e, 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-kw\/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 1.09 carat octagonal step cut, and it comes with a GIA Ruby Origin Report whose fields you can read for yourself. Face-up it looks eye-clean to me; under magnification you can see fractures. Ask me for more images and look at it before you decide.\"\u003c\/p\u003e\n\u003c\/div\u003e\u003ch2\u003eGood to Know\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerify it:\u003c\/strong\u003e run report #5232922092 through GIA’s Report Check before buying.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat is disclosed\u003c\/strong\u003e on the report — the standard route, not a mark against the stone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin is GIA’s expert opinion\u003c\/strong\u003e (Madagascar), printed with the usual disclaimer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAsk about filling as well as heating\u003c\/strong\u003e — a separate treatment common in rubies; this report addresses heating.\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 #5232922092, packed in a gem sleeve.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Crescent Gems","offers":[{"title":"Default Title","offer_id":43022352318531,"sku":"CG8407","price":3270.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/files\/1112023001_36c3fdf3-7a0d-4f02-929c-401f89728ec3.jpg?v=1777536660"},{"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-kw\/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-kw\/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-kw\/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-kw\/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-kw\/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-kw\/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":11550.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/files\/8456001.jpg?v=1783089221"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0658\/8982\/8931\/collections\/1112023001_36c3fdf3-7a0d-4f02-929c-401f89728ec3-1776781982.jpg?v=1781260410","url":"https:\/\/crescentgems.com\/en-kw\/collections\/ruby-gemstones-loose-stones-gia-certification.oembed","provider":"Crescent Gems","version":"1.0","type":"link"}