South Sea Tahitian and Keshi Pearl Lariat Necklace with Diamond and Gold Clasp Consign Now DeptJewelrySize10mm-15mm Length 28 in. Fine 10mm – 15mm South Sea Tahitian, Keshi Pearl and Diamond Lariat Necklace, strung with 21 18k white gold faceted beads, 14k white gold clasp set with 18 diamonds .11ct. Length 28 in. Please note that this auction has ended. Click here for an overview of this auction.