An Art Deco Platinum and Diamond Bar Brooch, Charlton, containing one antique cushion cut diamond measuring approximately 9.62 x 8.96 x 5.73 mm and weighing approximately 3.95 carats, ten old European cut diamonds weighing approximately 1.74 carats total, and 18 old European cut diamonds weighing approximately 0.54 carat total. Stamp: Charlton. 10.30 dwts.