{"product_id":"edwardian-gia-12-00-carat-no-heat-sapphire-diamond-platinum-brooch","title":"Edwardian GIA 12.00 carat no heat sapphire diamond platinum brooch","description":"\u003cdiv\u003eSome gemstones simply announce themselves, and the sapphire at the heart of this Edwardian brooch is one of them. A cabochon of extraordinary scale, weighing a full 12.00 carats, it is GIA-certified as natural, untreated Sri Lankan sapphire, one of the most sought-after origins in the trade, prized for its velvety saturation and the fact that no heat has ever touched its color. Certificates like this one, GIA #2245013064, are the gold standard for verifying exactly what you're buying, and a stone of this size with no heat treatment is genuinely uncommon on the market.\u003c\/div\u003e\u003cdiv\u003eSurrounding the sapphire, platinum, the defining metal of the Edwardian era, cradles 78 old European and rose cut diamonds totaling approximately 2.30 carats of G-H color, VS-SI clarity. The interplay of the diamonds' antique faceting against the sapphire's smooth cabochon dome is a study in the era's love of contrast and restraint, delicate metalwork married to bold, jewel-toned color. Dating to circa 1910, the brooch measures 1.75 inches in length and weighs 9.43 grams.\u003c\/div\u003e\u003cdiv\u003eA brooch of this caliber transcends any one occasion. Pin it to a lapel for a black-tie evening, a wrap for a gallery opening, or wear it as a striking centerpiece on a simple gown. It is, quite simply, a museum-quality investment piece for the serious collector of Edwardian jewelry.\u003c\/div\u003e","brand":"Jack Weir \u0026 Sons","offers":[{"title":"Default Title","offer_id":49193832612059,"sku":"38223","price":16500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0944\/1720\/files\/38223_4082936.jpg?v=1787940502","url":"https:\/\/jackweirandsons.com\/zh-hans\/products\/edwardian-gia-12-00-carat-no-heat-sapphire-diamond-platinum-brooch","provider":"Jack Weir \u0026 Sons","version":"1.0","type":"link"}