A BELLE ÉPOQUE BLACK OPAL AND DIAMOND RING
Set with an oval cabochon black opal, to the single-cut diamond pierced gallery and European-cut diamond shoulders, mounted in platinum, circa 1915
A BELLE ÉPOQUE BLACK OPAL AND DIAMOND RING
Set with an oval cabochon black opal, to the single-cut diamond pierced gallery and European-cut diamond shoulders, mounted in platinum, circa 1915