PLATINUM, DIAMOND AND SILVER-GREY SOUTH SEA PEARL BROOCH,1950s. 11.20mm south sea cultured pearl centered by four pear shape diamonds together weighing approx. 1.52 ct., and numerous channel-set straight and tapering baguette diamonds together weighing approx. 11.48 ct. - L: 1 3/4 in. Estimate $10,000-12,000