This is an authentic ROBERTO COIN 18K Yellow Gold Diamond Star Pendant Necklace. The necklace is crafted of 18 karat yellow gold and features a star motif pendant set with round brilliant cut diamonds weighing approximately .05 total carat weight. The necklace also features a signature synthetic ruby on the back of the pendant. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.