Please refer to the table below for ring size comparisons.
Size USA British Inside Circumference Inside Diameter
X SMALL (6) = 52 or 16.5mm
SMALL (7) = 55 or 17.5mm
MEDIUM (8) = 57 or 18mm
LARGE (9) = 60 or 19mm
We also do go up to sizes 10 and 11 or more for unisex designs.
SIZE 10 = 62 or 20mm
SIZE 11 = 65 or 20.68mm
A lot of our rings can be resized to fit or are designed open size for convenience.