The magnificent, satiny luster of these fantastic white pearls is produced by the silver-lipped South Sea oyster. Their opalescence will subtly change in appearance under different light conditions, making them a constant marvel to behold. White South Sea cultured pearl strand necklace with 18k white gold and diamond ball clasp. The length of the necklace measures 18 inches. Size of the pearls are 10 X 9.5mm.