This is an authentic ROBERTO COIN 18K White Gold Diamond .46ctw Bezel Stud Earrings. The earrings are crafted of 18 karat white gold and features bezel-set round brilliant cut diamonds, approximately .46 total carat weight, along with synthetic rubies on the back. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.