This is an authentic ROBERTO COIN 18K White Gold Diamond Diamante Earrings. The earrings are crafted of 18 karat white gold and feature rhombus motifs with dangling centers, set with approximately .55 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.