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