{"product_id":"opal-pin","title":"Platinum Art Deco Opal and Diamond Navette Brooch","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eA navette-form platinum brooch centering a large oval white opal cabochon displaying strong broad-flash play-of-color across the full face — red, orange, green, and blue in shifting patches — bezel-set within a milgrain-edged frame. Above and below the opal, the platinum is pierced and engraved with a running wheat or laurel leaf motif, a hallmark of Edwardian-to-Deco transitional craftsmanship. The pointed terminals flare into stepped, openwork panels each set with three old European-cut diamonds in milgrain collets. \u003cem\u003eThe combination of naturalistic pierced engraving with the clean geometric terminals places this squarely at the Edwardian-to-Art Deco transition, approximately 1915–1925.\u003c\/em\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eEra:\u003c\/strong\u003e Art Deco \/ Edwardian transition, approx. 1915–1925\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMetal:\u003c\/strong\u003e Platinum (appears; confirm hallmark)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCenter stone:\u003c\/strong\u003e White opal, oval cabochon, broad-flash play-of-color, red\/orange\/green\/blue; approx. 12 x 28 mm (confirm)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eAccent diamonds:\u003c\/strong\u003e Old European-cut, milgrain collet-set, 6 stones total, approx.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e.30ct. t.w. (confirm); appears H-I \/ SI (visual estimate)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eSetting:\u003c\/strong\u003e Bezel (opal); milgrain collet (diamonds)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eStyle:\u003c\/strong\u003e Navette brooch, pierced and engraved wheat\/laurel surround, openwork terminals\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eClosure:\u003c\/strong\u003e Roll-over C-catch pin stem (confirm catch type on reverse)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMeasurements:\u003c\/strong\u003e Approx.  17 mm x  37  mm overall (confirm)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Approx. 3.6 dwt. (confirm)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Empire Diamond","offers":[{"title":"Default Title","offer_id":45967747481786,"sku":"W11127","price":700.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0761\/6508\/7418\/files\/opalpinnew.png?v=1780939378","url":"https:\/\/empirediamond.com\/products\/opal-pin","provider":"Empire Diamond","version":"1.0","type":"link"}