Fine 13mm – 15.7mm White and Natural Gold South Sea Pearl Opera Length Necklace, 14k Gold and Diamond Clasp Consign Now DeptJewelrySizeLength 34 in. Fine 13mm – 15.7mm White and Natural Gold South Sea Pearl Opera Length Necklace, 14k k Gold and Diamond Clasp, comprising 63 pearls, .23ct diamonds 3.55 g Length 34 in. Please note that this auction has ended. Click here for an overview of this auction.