A diamond and cultured pearl chocker necklace, the Edwardian diamond centerpiece with openwork scroll design decorations, set with old European cut diamonds estimated to weigh in total approximately 4 ¾ carats, all millegrain-set in platinum, circa 1910, strung with nine rows of cultured pearls measuring 3.5-4mm n diameter, to a bayonet-style clasp, accompanied by detachable brooch fitting, the centerpiece measuring 4.4 x 2.6cm, the necklace measuring 34 x 3.3cm, gross weight 70 grams. This...