This is an authentic ROBERTO COIN 18K Yellow White Gold Diamond Open Stirrup and Circle Drop Earrings. The earrings are crafted of 18 karat yellow and white gold, and feature drop link motifs accented with approximately .10 total carat weight in the middle, along with hidden synthetic rubies. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.