Tiffany & Co. PLATINUM-estate knife-edge band size 54.5 or 7-7.25 US

The simple band is 2 mm but appears thinner because of the knife edge. Is perfect for stacking or wear alone as a simple dainty ring. It is priced accordingly because it is in good condition, not excellent. See closeups of microscopic scratches. On a resale market these are often going for $750 or more. A good professional polish is in order! European ring size 54.5 is a US size 7. But see pix on the ringer sizer.