This is an authentic ROBERTO COIN 18K Yellow Gold Diamond 25mm Inside Out Hoop Earrings. The earrings are crafted of 18 karat yellow gold and features round brilliant cut diamonds set along the interior and exterior of the band, approximately 1.50 total carat weight. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.