AN ART DECO DIAMOND, RUBY AND ONYX BROOCH
Designed as a pierced old European and rose-cut diamond rectangular tapered plaque, bezel-set at the center with a cushion-cut ruby, flanked on either side by a bezel-set old mine or old European-cut diamond, decorated with French-cut rubies and black onyx, enhanced by black enamel geometric detail, mounted in platinum, circa 1925
AN ART DECO DIAMOND, RUBY AND ONYX BROOCH
Designed as a pierced old European and rose-cut diamond rectangular tapered plaque, bezel-set at the center with a cushion-cut ruby, flanked on either side by a bezel-set old mine or old European-cut diamond, decorated with French-cut rubies and black onyx, enhanced by black enamel geometric detail, mounted in platinum, circa 1925
