Fine Tahitian South Sea Pearl Necklaces Consign Now DeptJewelry Fine 13mm – 15.5mm Multi-color Tahitian South Sea Pearl Necklace in shades of black, grey, silver and pistachio, 14k white gold clasp Length 17 in. Pictured with: Fine 12mm – 14.1 Tahitian Grey South Sea Pearl Necklace, 14k yellow gold clasp Length 16.5 in. Please note that this auction has ended. Click here for an overview of this auction.