This is an authentic ROBERTO COIN 18K Yellow Gold Diamond Pois Mois Lock Pendant Necklace. The necklace is crafted of 18 karat yellow gold and features a lock shaped pendant accented with circular carvings and round brilliant cut diamonds, approximately .26 total carat weight. The necklace also features a synthetic ruby on the bottom of the pendant. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.