This is an authentic ROBERTO COIN 18K Yellow Gold Diamond Enamel Drop Earrings Blue. The earrings are crafted of 18 karat yellow gold and feature blue enameled charms suspended from a textured round setting with a center diamond weighing approximately .05 total carat weight. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.