{"product_id":"large-art-deco-octagonal-onyx-and-diamond-ring","title":"Large Art Deco Octagonal Onyx and Diamond Ring","description":"Dating back to the zenith of the Art Deco period, circa 1925, we've never seen anything quite like this bountiful bauble (measuring 1 by 7\/8 inch) brought to you in glorious black \u0026amp; white. The striking octagonal top is composed of matte finished black onyx, center-pierced with a single sparkling European-cut diamond, trimmed on four sides with tiny glittering rose-cut diamonds. Matching mosaic like shoulders, a masterfully hand-engraved side gallery, and an engine-engraved under gallery add the finishing flourishes to this strikingly stunning  Jazz Age jewel. Hand fabricated in platinum, currently ring size 8 1\/2.","brand":"Lang Antiques","offers":[{"title":"Default Title","offer_id":53914383548744,"sku":"10-1-13404","price":4220.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0969\/2122\/3496\/files\/large-art-deco-octagonal-onyx-and-diamond-ring_1_10-1-13404.jpg?v=1787827021","url":"https:\/\/langantique.com\/products\/large-art-deco-octagonal-onyx-and-diamond-ring","provider":"Lang Antique","version":"1.0","type":"link"}