细节
A GROUP OF BLACK OPAL AND DIAMOND JEWELLERY
The pendant/brooch designed as an openwork scrolling plaque, accented by brilliant-cut diamonds, set to the centre with a pear-shaped black opal; a ring set with an oval-shaped black opal, within a square and tapered baguette-cut diamond ballerina surround, mounted in platinum, pendant/brooch 3.9 x 5.2 cm, ring size 5¾
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