{"product_id":"vintage-mauboussin-art-deco-platinum-diamond-key-brooch","title":"Art Deco Platinum Diamond Key Brooch","description":"\u003cp\u003e\u003cspan style=\"font-size: 1rem;\"\u003eA fabulous Art Deco diamond key brooch attributed to Mauboussin, with exceptional geometric design and beautiful period diamond setting. The key features a large circular head completely set with diamonds, framed by strong rectangular details and an elongated shaft finished with a geometric notched tip. A gorgeous combination of baguette, carré and old cut diamonds creates incredible texture and brilliance throughout, with the clean platinum setting giving each section beautiful definition.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCrafted in platinum and set with approximately 3.50 carats of diamonds, estimated G–H color and VS–SI clarity. The combination of straight step-cut geometry and old cut diamonds is particularly beautiful, showcasing the exceptional craftsmanship and design of the Art Deco period. The reverse features a locking trombone clasp, allowing the piece to be worn as a traditional brooch or incorporated into a necklace as a pendant or extender.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 1rem;\"\u003eMeasuring approximately 46 × 16 mm and weighing 7.7 grams. This brooch is punchmarked and numbered. It’s a wonderful example of Art Deco jewelry design with strong geometric lines, fine diamond setting and the versatility to be worn several ways\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"The Vintage Jeweler- JT London","offers":[{"title":"Default Title","offer_id":50964400505088,"sku":null,"price":12500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/6023\/6288\/files\/UN-1505_4xrxwkn27ex_2026-11-11-13-46-26.jpg?v=1794430725","url":"https:\/\/ejmama.com\/products\/vintage-mauboussin-art-deco-platinum-diamond-key-brooch","provider":"Estate Jewelry Mama","version":"1.0","type":"link"}