18ct White Gold 0.44ct Tanzanite and 0.10ct Diamond Oval Cluster Ring RW-0716-TZ This elegant 18 carat white gold ring features a claw set central piece of 0.44 carat Tanzanite which is oval cut, with 0.10 carat claw set brilliant cut diamonds each side in the shoulders of the ring. Materials: 18ct White Gold, Tanzanite 0.44ct, Diamonds 0.10ct