This is an authentic ROBERTO COIN 18K White Gold Diamond Hamsa Pendant Necklace. The necklace is crafted of 18 karat white gold and features a Hamsa motif pendant accented with round cut diamonds weighing approximately .18 total carat weight. The pendant also features the designer's synthetic ruby signature on the opposite side. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.