AN ART DECO EMERALD AND DIAMOND CLIP BROOCH, BY RENÉ BOIVIN

AN ART DECO EMERALD AND DIAMOND CLIP BROOCH, BY RENÉ BOIVIN
Of shield-shape, centering upon a pear-shaped diamond, to the emerald and diamond surround, circa 1930, 4.4 cm, with French assay marks for platinum and gold, in red leather René Boivin case
Signed René Boivin Paris