Ring Sizing

Different countries use different standards for ring sizing. Our rings are measured using
the U.S. convention. Please refer to the handy chart below for help in converting U.S.
ring sizes. If we have missed any, let us know at customerservice@greatergood.com!

U.S.A. Size	U.K. Size	French Size	German Size	Japanese Size	Swiss Size	Circumference (mm)	Diameter (mm)
5	J 1/2	49.5	15.75	9	9.5	49	15.7
6	M	52.75	16.5	12	12.75	51.5	16.51
7	O	55.25	17.25	14	15.25	54	17.35
8	Q	57.75	18	16	17.75	56.6	18.19
9	S	60.25	19	18	20.25	59.1	18.99
10	T 1/2	62	20	20	22.13	61.6	19.84