South Sea Pearl Necklace in Shades of White, Gold, Black and Gray Consign Now DeptJewelry Fine 13.2mm – 17mm South Sea Pearl Necklace in Shades of White, Gold, Black and Gray with 18k white gold spacers and 14k gold clasp, Length 19.5 in. Please note that this auction has ended. Click here for an overview of this auction.