18K (750) gold brooch representing a wasp, the head adorned with a cabochon green stone, the antennae studded with rose-cut diamonds and the openwork wings embellished with imitation sapphires or blue stones in a rectangular shape. Work of the 1940's. Dimensions: approx. 4.2 x 3.2 cm. Gross weight: 7.2 g (shocks, chips, missing material)