Fine South Sea Grey Tahitian and Keshi Pearl Necklace Consign Now DeptJewelrySize11mm - 14mm Length 18 in. Fine 11mm – 14mm South Sea Grey Tahitian and Keshi Pearl Necklace, 70 total pearls, 14k white gold and diamond clasp Length 18 in. Please note that this auction has ended. Click here for an overview of this auction.