28 septembre 2013
Natural clam pearl, conch pearl and diamond ring
Natural clam pearl, conch pearl and diamond ring. Photo: Sotheby's Centring on a button-shaped natural clam pearl measuring approximately 16.75 - 16.80 x 12.00mm, surrounded by conch pearls measuring approximately 5.30 x 4.70 x 3.50mm to 5.10 - 5.25mm,...