Opal and yellow gold halo ring rubbed 9ct marks. With mostly blue and green colours, some red-orange flash to edges. Approx 1@ pear cabochon opal size 14.5 mm x 11.6 mm x 4.2 mm depth, 16x round cabochon cuts 2 mm diameter each, ring weight 8.9 grams, ring size R-S. Tests as 9ct