细节
A BLACK OPAL AND DIAMOND RING
Centering upon an oval cabochon black opal, within a brilliant-cut diamond surround, mounted in platinum, ring size 6
Accompanied by report No. 76379 dated 23 September 2014 from the SSEF Swiss Gemmological Institute stating that the approximately 10.00 carat black opal is of Australia origin, with no indications of any treatment