You may be able to find your ring size by measuring a ring you own that is a comfortable fit. If not, our guide below is on hand to take the guesswork out of ring shopping.

Alternatively, our jewelry experts are here to help. Speak with an expert or pop into one of our stores and we'll measure you on the spot.

Size Chart

US	UK	EU	⌀ Inside Diameter
2.5	E	42	⌀ 13.6mm
3	F	44	⌀ 14.0 mm
3.5	G	45	⌀ 14.5 mm
4	H	46.5	⌀ 15.0 mm
4.5	I	48	⌀ 15.3 mm
5	J	49.5	⌀ 15.6 mm
5.5	K	50.5	⌀ 16.2 mm
6	L	52	⌀ 16.6 mm
6.5	M	53	⌀ 16.9 mm
7	N	54.5	⌀ 17.2 mm
7.5	O	55.5	⌀ 17.8 mm
8	P	57	⌀ 18.1 mm
8.5	Q	58	⌀ 18.5 mm
9	R	59.5	⌀ 19.1 mm
9.5	S	61	⌀ 19.4 mm
10	T	62	⌀ 19.7 mm
10.5	U	63.5	⌀ 20.4 mm
11	V	64.5	⌀ 20.7 mm
11.5	W	66	⌀ 21.0 mm
12	X	67	⌀ 21.6 mm
12.5	Y	68.5	⌀ 22.0 mm
13	Z	69.5	⌀ 22.3 mm

If your size isn’t currently available, don’t worry we can usually resize a ring up or down by up to two sizes across a selection of our gold bands. Please reach out to the team for more information on enquiries@jessicamccormack.com.