20mm – 22mm White Coin Fresh Water Pearl and Sapphire Bead Necklace Consign Now DeptJewelrySizeLength 34 in. 20mm – 22mm White Coin Fresh Water Pearl and Sapphire Bead Necklace, with 14k yellow gold clasp. Length 34 in. Please note that this auction has ended. Click here for an overview of this auction.