A ruby and diamond ring, c. 1920

A ruby and diamond ring, c. 1920

cabochon ruby surrounded by old brilliant and single-cut diamonds decorated with millegrain to a pierced platinum mount, later Dutch assay marks. Ruby with a surface reaching fracture, diamonds well matched, mount with signs of wear in accordance with age.

ruby c. 8.0 x 7.1 x 5.9 mm.; ring size 51