细节
A GROUP OF OPAL AND DIAMOND RINGS
ONE SET WITH A CABOCHON BLACK OPAL, WITHIN AN UNDULATING TAPERED BAGUETTE-CUT DIAMOND BALLERINA SURROUND, MOUNTED IN PLATINUM, RING SIZE 5½; ANOTHER SET WITH A CABOCHON WHITE OPAL, WITHIN A BRILLIANT-CUT DIAMOND SURROUND, MOUNTED IN PLATINUM, RING SIZE 5¾
(2)