An opal and diamond ring, cluster style, comprising a large central solid Lightning Ridge opal of fine blue/green colour. Surrounded by twenty two small brilliant cut diamonds, with six diamonds set to each shoulder mount. Opal size: 12.3 mm x 9.9 mm. Total diamond weight: 0.45cts. 18 carat white gold mille grain setting. Made by Kozminsky. Ring size N-O.