3 février 2014
A fire opal and diamond cluster ring
A fire opal and diamond cluster ring. Photo: Bonhams. The raised oval mixed-cut fire opal, weighing 5.64 carats, within a brilliant-cut diamond surround, ring size M½. Estimate £2,500 - 3,500 (€3,000 - 4,300) Accompanied by a report from The Gem & Pearl...