{"product_id":"vintage-14kt-yellow-gold-0-72ct-diamond-black-onyx-geometric-brooch-tie-pin","title":"Vintage 14KT Yellow Gold 0.72CT Diamond \u0026 Black Onyx Geometric Brooch \/ Tie Pin","description":"\u003cdiv\u003eVintage 14KT yellow gold geometric brooch or tie pin featuring a bold stepped rectangular design accented with polished black onyx and 0.72CT-TW of round brilliant-cut diamonds, graded F color and VS clarity. The diamonds are arranged in a central geometric cluster with additional diamond accents, creating a striking contrast against the black onyx and warm yellow gold. Measuring 21 × 41.5mm, this distinctive piece reflects the clean lines and architectural styling of vintage geometric jewelry.\u003c\/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\u003cdiv\u003eSpecifications:\u003c\/div\u003e\u003cul\u003e\n\u003cli\u003eJewelry Type: Brooch \/ Tie Pin\u003c\/li\u003e\n\u003cli\u003eEra: Vintage\u003c\/li\u003e\n\u003cli\u003eMetal: 14KT Yellow Gold\u003c\/li\u003e\n\u003cli\u003eGemstone: Black Onyx\u003c\/li\u003e\n\u003cli\u003eDiamonds: 0.72CT-TW Round Brilliant-Cut\u003c\/li\u003e\n\u003cli\u003eDiamond Color: F\u003c\/li\u003e\n\u003cli\u003eDiamond Clarity: VS\u003c\/li\u003e\n\u003cli\u003eDesign: Geometric Stepped Rectangular\u003c\/li\u003e\n\u003cli\u003eDimensions: 21 × 41.5 × 2.2mm\u003c\/li\u003e\n\u003cli\u003eWeight: 8.84 grams\u003c\/li\u003e\n\u003cli\u003eCondition: Vintage – Very Good\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Louis Martin Jewelers - Fifth Avenue - NYC","offers":[{"title":"Default Title","offer_id":50648039161926,"sku":"180-00234","price":4640.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1213\/2366\/files\/180-00234_3_4294100.jpg?v=1792102117","url":"https:\/\/louismartin.com\/products\/vintage-14kt-yellow-gold-0-72ct-diamond-black-onyx-geometric-brooch-tie-pin","provider":"Louis Martin Jewelers - Fifth Avenue - NYC","version":"1.0","type":"link"}