A diamond single stone ring. Set with a circular shaped old cut diamond, measuring approximately 5.48mm x 5.51mm, depth 3.23mm, within an eight claw setting, tapering asymmetric white shoulders with grain detail, plain polished ”D” shaped yellow cross sectioned shank. Stamped 18ct (partially indistinct), tested and valued as 18ct yellow gold with platinum shoulders and setting. Calculated diamond weight 0.63 metric carat. assessed colour I-J, assessed clarity I2.