A 9 CARAT GOLD COMPOSITE BLACK OPAL RING, an oval composite black opal in a bezel setting to forked shoulders. Hallmarked London 1977, ring size P1/2, 4.8 grams Condition Report Probably an opal doublet or triplet, the setting prevents determining which, please be aware this is a composite stone and not pure black opal. Stone measures 16.26 x 12.28 x 3.96mm, condition of the top layer good, frosting noted between the opal and top composite layer.