Picchiotti 3.04ct Pink Tourmaline Diamond Heart Shaped Ring R780 A Stunning Unique Pink Tourmaline & Diamond Heart Shaped. Designed and made by Picchiotti manufacturing fine jewellery since 1967. The ring is made from 18ct Rose Gold Ring featuring a pink tourmaline heart which is claw set. Pink Tourmaline; 3.04ct Diamond; 0.66ct F/VS