This is an authentic ROBERTO COIN 18K Yellow Gold Diamond Medium Princess Flower Stud Earrings. The earrings are crafted of 18 karat yellow gold and feature 18 karat white gold posts attached to quatrefoil motifs accented with round cut diamonds weighing approximately .38 total carat weight. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.