Roberto Coin Diamond Quatrefoil Ring — Gold

Roberto Coin's 18-karat yellow gold ring features an openwork quatrefoil motif with twisted-cord texture and a striking bypass silhouette. Four round brilliant diamonds set in white gold enhance the upper quatrefoil, while a concealed ruby sits at the band junction—a signature detail of the house. The polished finish and illusion setting create dimensional depth across the sculptural design. Layer it or wear solo as an architectural .