{"product_id":"mauboussin-french-art-deco-platinum-sapphire-diamond-ring","title":"Mauboussin French Art Deco Platinum Sapphire \u0026 Diamond Ring","description":"This vintage Mauboussin ring, French and circa 1929, is crafted in platinum with an Art Deco cluster design featuring intricate openwork, a pierced gallery, and polished edges. At the center is a natural no-heat Basaltic cabochon sapphire of approximately 8.40 carats in an open-back rubover setting, accented by additional unenhanced sapphire cabochons totaling approximately 0.20 carats. Diamonds surround the centerpiece in a mix of eight-cut round, old mine cushion, and step-cut stones for a total approximate diamond weight of 0.85 carats. Marked platinum with an indistinct maker’s mark and numbered “0257100,” it is size 3.75 (US) and resizable, accompanied by a Gubelin report and official signed documentation from Mauboussin Paris.","brand":"The Jewelers Circle","offers":[{"title":"Default Title","offer_id":63535542632817,"sku":null,"price":46575.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0754\/2879\/0571\/files\/B2C69f228d8ea34f0.13206871.jpg?v=1777478089","url":"https:\/\/jewelerscircle.com\/products\/mauboussin-french-art-deco-platinum-sapphire-diamond-ring","provider":"The Jewelers Circle","version":"1.0","type":"link"}