This is an authentic ROBERTO COIN 18K Yellow Gold Diamond Medium Petite Venetian Princess Satin Finish Flower Stud Earrings. The earrings are crafted of 18 karat yellow gold and feature a quatrefoil motif accented with diamonds weighing approximately .12 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.