This is an authentic JOHN HARDY 18K Yellow Gold Pink Tourmaline Classic Chain Pinky Signet Ring 52 6. This magnificent signet ring is crafted of a 18 karat yellow gold with a pink tourmaline. Enjoy this ring for its exceptional quality and the elegant style only from John Hardy! Follow this item for alerts. John Hardy is a registered trademark of John Hardy. FASHIONPHILE is not affiliated with John Hardy.