Ring Size Guide

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Ring Sizing

Everything you need to know about ring sizes and bespoke resizing.

The most important thing prior to purchasing a ring either for yourself or as a gift is to accurately find out the correct ring size. Everyone is slightly different so we've put together a simple guide to help.

The most accurate way to be measured is to visit a local jeweller or goldsmith but there are several methods to measuring at home with household items.

Authentically antique: Bespoke tailored for you

Many of our rings available can be sized up or down.

We are more than happy to give our expert opinion on whether the piece you have selected can be sized or not, and how many sizes it can be altered.

If you would like our goldsmith to do alterations prior to shipping, we can provide a quote and arrange for alterations with a 7-14 lead time.

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Ring Size Chart

We have made this converter chart to compare the three types of ring size.

If using a string to measure then this is the circumference

Some companies stamp the EU size inside the shank which is useful as a guide if you have one of their rings.

Circumference in mm ( inner length )	Diameter ( inner width )	UK ring size	USA ring size	EU ring size
37.8	12.04	A	0.5	38
39.1	12.45	B	1	39
40.4	12.85	C	1.5	40
41.7	13.26	D	2	42
42.9	13.67	E	2.5	43
44.2	14.07	F	3	44
45.5	14.48	G	3.5	45
46.8	14.88	H	4	47
48	15.29	I	4.5	48
48.7	15.49	J	5	49
50	15.9	K	5.5	50
51.2	16.31	L	6	51
52.5	16.71	M	6.5	52
53.8	17.12	N	7	54
55.1	17.53	O	7.5	55
56.3	17.93	P	8	56
57.6	18.34	Q	8.5	58
58.9	18.75	R	9	59
60.2	19.15	S	9.5	60
61.4	19.56	T	10	61
62.7	19.96	U	10.5	63
64	20.37	V	11	64
65.3	20.78	W	11.5	65
66.6	21.18	X	12	67
67.8	21.59	Y	12.5	68
68.5	21.79	Z	13	69