A DIAMOND, SAPPHIRE AND GEM-SET BAR BROOCH, THE CENTRAL DIAMOND SINGLE-STONE AND SAPPHIRE FLOWERHEAD CLUSTER WITHIN A CIRCULAR WHITE ENAMEL FRAME, THE TAPERING WHITE ENAMEL OPENWORK SHOULDERS WITH UNTESTED PEARL THREE-STONE AND CALIBRé-CUT SAPPHIRE FOUR-STONE DECORATION.