A diamond single-stone ring, 1940s, the step-cut diamond, weighing 4.85 carats, set between staggered bagette-cut diamond shoulders, mounted in platinum, ring size K. Accompanied by a report from the Gemmological Insitute of America (GIA) stating that the diamond is F colour, VVS2 clarity. Report number 2155339440, dated March 26th 2013