Gem Quality 13.1mm x 16.7mm White South Sea Pearl Necklace Consign Now DeptJewelrySizeLength 17 in. Gem Quality 13.1mm x 16.7mm White South Sea Pearl Necklace, composed of 29 fine pearls with 14k yellow gold clasp. Length 17 in. Please note that this auction has ended. Click here for an overview of this auction.