Large Opal and diamond ring 1x 18ct white gold stamped 18k and set with 1x approx 22.8x 16.5mm oval cabochon cut predominately violet blue colour Opal & 16x approx 0.01 GHSI with 6x approx 0.02CT GHSI baguette cut diamonds total weight of the item 13.7 grams Size O.