ART DECO PLATINUM DIAMOND AND ONYX BROOCH BY CHAUMET
An Art Deco, platinum, diamond and onyx brooch by Chaumet, designed as a buckle pavé- and bezel-set with old cut diamonds and accents of polished onyx, all mounted in platinum. Bearing Chaumet maker’s mark and French assay mark for platinum. Measuring 5.5cm by 2.5cm. Circa 1925.