A good Sapphire, diamond and 18ct gold halo ring with cast figural shoulders of the winged goddess Isis, nude holding up the setting. Marked 750. approx total ring weight 13.50 grams, ring size M-N. Oval cut blue sapphire 10 mm x 8 mm x 5 mm estimated weight 3.20ct. 18x round brilliant cut diamonds diameter 2 mm each. Estimated total weight 0.54ct