An opal and diamond oval cluster ring, oval cabochon opal me...

An opal and diamond oval cluster ring, oval cabochon opal measuring approx 12mm x 9mm x 3.7mm with strong blue, green and violet colour, surrounded by a halo of old mine and mixed cut diamond, total estimated diamond weight approx 0.35ct, yellow metal shank, marked 18ct, size N, 3.7g gross

Estimate:£300

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