A BLACK OPAL AND DIAMOND CLUSTER RING, the central pear-shaped black opal with circular-cut diamond cluster surround, with openwork gallery and fleur-de-lis shoulders to the plain hoop

细节
A BLACK OPAL AND DIAMOND CLUSTER RING, the central pear-shaped black opal with circular-cut diamond cluster surround, with openwork gallery and fleur-de-lis shoulders to the plain hoop