Cartier, a citrine, topaz and diamond brooch, 1940s, designed as a flower

Cartier, a citrine, topaz and diamond brooch, 1940s, designed as a flower, set with oval topazes, pear-shaped citrines and cushion-shaped diamonds, mounted in gold, length 5.6cm, signed Cartier London, numbered 01116

Cf.: Nadine Coleno, Amazing Cartier: Creations Since 1937, p.103 and 121 for comparable flower brooches by Cartier London, dated to circa 1945.