{"product_id":"retro-sapphire-diamond-18k-yellow-gold-platinum-ring","title":"Retro sapphire diamond 18k yellow gold platinum ring","description":"\u003cdiv\u003eFifteen carré cut sapphires, weighing approximately 1.80 carats, run across this ring in a rich band of blue, while thirty round brilliant and single cut diamonds, weighing approximately 1.00 carat in G-H color and VS-SI clarity, surround and accent them for extra sparkle. The combination of 18k yellow gold and platinum is a hallmark of Retro-era design, when jewelers paired gold's warmth with platinum's strength and cool tone in the same piece rather than choosing one metal throughout, a deliberate two-tone contrast rather than a compromise. Hallmarked with both a maker's mark and a purity mark, the ring weighs 11.29 grams, giving it a confident, substantial presence on the hand. Circa 1940s, this is a well-proportioned sapphire and diamond ring from a period known for bold, sculptural jewelry design, offering real color and craftsmanship for someone drawn to the more architectural side of vintage style.\u003c\/div\u003e","brand":"Jack Weir \u0026 Sons","offers":[{"title":"Default Title","offer_id":50518186328283,"sku":"38975","price":6500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0944\/1720\/files\/38975_4196101.jpg?v=1790375174","url":"https:\/\/jackweirandsons.com\/fr\/products\/retro-sapphire-diamond-18k-yellow-gold-platinum-ring","provider":"Jack Weir \u0026 Sons","version":"1.0","type":"link"}