细节
A CABOCHON RUBY AND DIAMOND RING AND A BLACK OPAL AND DIAMOND RING
The first set with an elongated oval cabochon ruby in a circular-cut diamond surround, to the diamond-set shoulders and 18K gold band, size 6, (one diamond deficient); accompanied by a black opal and diamond ring set with an irregular-shaped opal with circular-cut diamond trefoil shoulders, mounted in 18K gold, size 7 (partially illustrated)
(2)