{"product_id":"an-extraordinary-diamond-platinum-tested-art-deco-demi-bombe-elongated-quatrefoil-ring-circa-1930","title":"An extraordinary Diamond \u0026 Platinum (tested). Art Deco Demi-Bombe \u0026 Elongated Quatrefoil Ring Circa 1930","description":"\u003cp\u003eAn extraordinary Diamond \u0026amp; Platinum (stamped). Art Deco Demi-Bombe \u0026amp; Elongated Quatrefoil Ring.\u003c\/p\u003e\n\u003cp\u003eRub-over set with four Old Round Cut Diamonds, forming an extended Quatrefoil design, surrounding the central Old Cut Diamond. An open strap work design throughout,  set with six smaller Round Old Cut Diamonds, Millegrain edged with tapering engraved foliate shoulders.\u003c\/p\u003e\n\u003cp\u003eAccompanied by an independent Gemmologist's report assessing the natural Diamonds (in their mounts), as weighing approximately 3.35 Carats (total), of G - H Colour and VS - SI Clarity.\u003c\/p\u003e\n\u003cp\u003eCurrently sizes to: P \u003cbr\u003e (7.5 USA equivalent).   \u003cbr\u003e \u003cbr\u003eCirca 1930\u003c\/p\u003e","brand":"Robin Haydock Antique Jewellery","offers":[{"title":"Default Title","offer_id":58006463381891,"sku":"3681","price":12850.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/3616\/7390\/files\/Photo_30-04-2026_16_16_12.jpg?v=1778246303","url":"https:\/\/robinhaydockantiques.com\/products\/an-extraordinary-diamond-platinum-tested-art-deco-demi-bombe-elongated-quatrefoil-ring-circa-1930","provider":"Robin Haydock Antique Jewellery","version":"1.0","type":"link"}