18ct Yellow Gold Turquoise Diamond Tiara Double Band Ring. R1234. This exquisite ring features the finest Turquoise stone, sourced directly from the north east coast of Yorkshire. The beautiful 18ct yellow gold tiara shaped ring is embellished with 20 brilliant cut diamonds (0.20ct total). At C W Sellors, we have an expert team of gemstone and diamond specialists who handpick and grade each jewel to meet our high standards and a team of talented in house designers who combine their talents to bring you our exclusive Precious Gemstone collection. You can find other Jet pieces online and in store to complement this ring. All articles purchased from C W Sellors are lovingly and securely dispatched with our elegant jewellery packaging. Matching items are available within this collection.