AN ART DECO DIAMOND BROOCH

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AN ART DECO DIAMOND BROOCH
Designed as a tapered openwork plaque of circular outline, one side set with graduated old European-cut diamonds and baguette-cut diamond detail, the other side set with graduated baguette and old European-cut diamonds, to the bezel-set pear-shaped diamonds, joined by a trillion-cut diamond, mounted in platinum, circa 1925