Art Deco Platinum and Diamond Brooch 15 old European-cut diamonds ap.
AN ART DECO DIAMOND JABOT PIN The openwork geometric plaque set with old European and baguette-cut diamonds, joined by a gold pin to a terminal of similar design, mounted in platinum and gold, circa 1935
Edwardian Platinum, Diamond and Plique-a-Jour Enamel Swallow Brooch for Sale at Auction on Wed, - - Important Estate Jewelry
Art deco ruby, onyx and diamond brooch. The tapered rectangular-shaped plaque set throughout with single and circular-cut diamonds, to the central floral motif set with ruby and emerald flowerheads and onyx leaves, mounted in platinum, circa 1925