Lot 572 , A black opal and diamond ring

A black opal and diamond ring, claw-set with a cabochon black opal measuring approximately 14.5 x 9 x 4.7mm, to shoulders accented with brilliant-cut diamonds, mounted in bicoloured 18ct gold, size M1/2, British hallmarks, gross weight approximately 6.5 grams
£300-500

Sold for £420