Opal and diamond open back cluster ring, one 14ct white gold stamped 560 and set with, one approx 11.1 x 11.1 mm cushion shaped cabochon cut opal with blue green and purple colour flashes which is surrounded with 32 approx 0.02ct Gh\Si round brilliant cut diamonds all bead set the total weight of the item 5.5 grams size P, valuation at 10,000