This is an authentic ROBERTO COIN 18K White Gold Diamond Blue Sapphire Hamsa Pendant Necklace. The necklace is crafted of 18 karat white gold and features a Hamsa motif pendant with one synthetic blue sapphire and pave-set with round brilliant cut diamonds weighing approximately .15 total carat weight. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.