10mm-12mm Tahitian Grey South Sea Pearl and Black Spinel Necklace Consign Now DeptJewelrySizeLength 46 in. 10mm-12mm Tahitian Grey South Sea Pearl and Black Spinel Necklace, may be worn doubled up or as a bracelet for the adventurous; 29 pearls total Length 46 in. Please note that this auction has ended. Click here for an overview of this auction.