This is an authentic ROBERTO COIN 18K Yellow Gold Prasiolite Primavera Bypass Bracelet. The bracelet is crafted of 18 karat yellow gold and features a flexible, woven bypassing cuff with bezel-set prasiolite, along with a signature synthetic ruby on the inside. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.