细节
THREE GENTLEMAN'S DIAMOND AND GEM-SET RINGS
The first, set with an oval cabochon sapphire in a circular-cut diamond surround, size 6 3/4; the second, set with an oval cabochon sapphire with calibré-cut sapphire shoulders to the fluted gold half-hoop surround, size 6 1/2; the third, set with a square-cut diamond with circular-cut diamond shoulders to the fluted half-hoop surround, size 6 1/2, all mounted in 18K gold
(3)