A platinum synthetic diamond single-stone ring.Estimated synthetic diamond weight 0.40ct, H-I colour, P1 clarity.Hallmarks for Birmingham.Ring size K. 3.7gms. ANo obvious faults other than wear in keeping with age and use.Diamond has small inclusions and a hazy appearance.Limited laboratory testing has been done on this stone, further testing would be required.Condition reports are offered as a guide only and we highly recommend inspecting any lot to satisfy yourself as to its condition.