Aquamarine and diamond pendant/brooch, mid 20th century, designed as a stylised open work spray, decorated with circular-cut, marquise-shaped and baguette diamonds, supporting a claw-set cushion-shaped aquamarine swing drop from a marquise-shaped diamond surmount, the aquamarine and diamonds together weighing approximately 10.50 carats and 2.50 carats respectively, mounted in platinum, approximately 60 x 50 mm.