Edwardian diamond cluster ring. Set to centre with five round old cut diamonds in open back rubover settings with a combined approximate weight of 0.50 carats, further set with thirty six round old cut diamonds in open back rubover and grain settings with a combined weight of 1.00 carats. The total approximate diamond weight is 1.50 carats, to a quatrefoil cluster form featuring openwork details, an intricately pierced gallery and open backholing, leading to smooth shoulders and flowing through to a solid shank. Tested yellow gold and platinum, circa 1910.
