This is an authentic ROBERTO COIN 18K Yellow Gold Diamond 5mm Tapered Band Ring size 53 or 6.25. The ring is crafted of 18 karat yellow gold and features a tapered band pave-set with round brilliant cut diamonds, approximately 1.21 total carat weight. Follow this item for alerts. Roberto Coin is a registered trademark of Roberto Coin. FASHIONPHILE is not affiliated with Roberto Coin.