Large 18K (750) gold brooch with knotted ribbons, the center adorned with an oval cabochon emerald, set with round half-cut and brilliant-cut diamonds, holding two chains each ending in a triangular diamond. Work of the 1940s. Dimensions : 7 x 7,5 cm approximately. Gross weight: 45.5 g (chips, shocks) A 1940 diamonds and emeralds brooch