A solid white opal set ring, 18ct yellow gold, handmade as a large signet styled ring, featuring a solid oval cabochon cut white opal of strong mixed colours, violet, orange and green the predominant colours, rolling colour throughout, measuring 22.8 x 13.6 x 3.75 mm, weighing approximately 6.60ct, claw set in an open backed mount, set into a wide heavy gold frame with smooth band