ROSETTE" BROOCH Yellow gold, claw-set with round old-cut diamonds surrounded by circles of red enamel and a chased leaf motif, holding three detachable pendants terminating in an enamelled spear. Napoleon III period. Master hallmark. An old cut diamond, 18k gold and enamel brooch. Circa 1870. RC: Master hallmark for research. Size: 8.3 x 4 cm approx. Gross weight: 17.1 g (18k - 750).