{"product_id":"vintage-18k-gold-trilogy-unheated-madagascar-sapphire-trillion-diamond-ring","title":"Vintage 18k Gold Trilogy Ring — 3.55ct Unheated Vivid Blue Madagascar Sapphire \u0026 Trillion-Cut Diamonds | Bellerophon Certified","description":"\u003cp\u003eA vintage trilogy ring from circa 1990 in 18k gold, centered on a natural unheated Madagascar sapphire of 3.55 carats — a stone of vivid, exceptional blue, no-heat, certified by Bellerophon Gem lab. The sapphire is flanked by two trillion-cut diamonds of approximately 0.40 carats each. \u003c\/p\u003e\n\u003ch4\u003eDetails\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePeriod:\u003c\/strong\u003e Vintage, circa 1990\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetal:\u003c\/strong\u003e 18k gold\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentral stone:\u003c\/strong\u003e Natural unheated vivid blue sapphire, Madagascar, 3.55ct — Bellerophon no-heat certified\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccent stones:\u003c\/strong\u003e Two trillion-cut diamonds, approx. 0.40ct each, estimated VS quality, E\/F color\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBand height:\u003c\/strong\u003e 9 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal weight:\u003c\/strong\u003e 3.8 g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 54 FR — 7 US — N½ UK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHallmarks:\u003c\/strong\u003e Eagle's head (French guarantee mark for 18k gold), partially legible maker's mark\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e Bellerophon no-heat certificate included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Very good\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Antique Jewelry Finds","offers":[{"title":"Default Title","offer_id":58922261315916,"sku":"RI-1072","price":7000.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1015\/8633\/8124\/files\/cbc495ad-10f3-4ebc-8641-6d2a99244f1c.png?v=1790173370","url":"https:\/\/antiquejewelryfinds.com\/products\/vintage-18k-gold-trilogy-unheated-madagascar-sapphire-trillion-diamond-ring","provider":"Antique Jewelry Finds","version":"1.0","type":"link"}