Art Nouveau butterfly brooch in silver and 18K (750) pink gold, depicting a butterfly with delicately worked and diamond-patterned outstretched wings, punctuated with a few very small rubies and sapphires, the body adorned with an oval-cut diamond and a very fine oblong white pearl. Marked: none oval diamond, estimated total weight: approx. 1 ct rose-cut diamond, estimated total weight: approx. 1.30 ct Pearl size: 9 x 7 mm approximately H: 3.7 cm W: 6 cm Weight: 13.3 g