A fine white metal (tests platinum) diamond and onyx brooch the central old cut diamond measuring approx. 4.5 mm diameter x 3 mm deep estimated to weigh approx. 0.5 carat approx. 5 cm long circa 1920
A fine white metal (tests platinum) diamond and onyx brooch the central old cut diamond measuring approx. 4.5 mm diameter x 3 mm deep estimated to weigh approx. 0.5 carat approx. 5 cm long circa 1920.