Ring sizing

We get it - the last thing you want when buying a ring online is to end up with the wrong size!

Luckily, we've got all the information you need on each product page to make sure you get the right size of ring. There's a few different ways ring sizing is measured:

British/Australian: letter, followed by a fraction for in-between sizes (eg N 1/2)
US: number, followed by a fraction for in-between sizes (eg 7 1/2)
Inside diameter of the ring

The table below will show you how these sizes correspond with each other. This will help if you know the size of one of your current rings.

If you're not sure of your size, the most accurate way to get a size is to make friends with your local jeweller, who will have gauging tools get an accurate measurement. If there's a piece that you really love but will need to be resized, your local jeweller will be able to help out with that too.

Inside Diameter	Inside Circumference	Sizes
MM	MM	UK/Aus	US
9.91	31.13	-	0000
10.72	33.68	-	00
11.53	36.22	-	0
11.95	37.54	A	1/2
12.18	38.26	A 1/2	3/4
12.37	38.86	B	1
12.60	39.58	B 1/2	1 1/4
12.78	40.15	C	1 1/2
13.00	40.84	C 1/2	1 3/4
13.21	41.50	D	2
13.41	42.13	D 1/2	2 1/4
13.61	42.76	E	2 1/2
13.83	43.45	E 1/2	2 3/4
14.05	44.14	F	3
14.15	44.45	F 1/2	3 1/8
14.25	44.77	F 3/4	3 1/4
14.36	45.11	G	3 3/8
14.45	45.40	G 1/4	3 1/2
14.56	45.74	G 1/2	3 5/8
14.65	46.02	H	3 3/4
14.86	46.68	H 1/2	4
15.04	47.25	I	4 1/4
15.27	47.97	I 1/2	4 1/2
15.40	48.38	J	4 5/8
15.53	48.79	J 1/4	4 3/4
15.70	49.32	J 1/2	5
15.80	49.64	K	5 1/8
15.90	49.95	K 1/4	5 1/4
16.00	50.27	K 1/2	5 3/8
16.10	50.58	L	5 1/2
16.30	51.21	L 1/4	5 3/4
16.41	51.55	L 1/2	5 7/8
16.51	51.87	M	6
16.71	52.50	M 1/2	6 1/4
16.92	53.16	N	6 1/2
17.13	53.82	N 1/2	6 3/4
17.35	54.51	O	7
17.45	54.82	O 1/2	7 1/4
17.75	55.76	P	7 1/2
17.97	56.45	P 1/2	7 3/4
18.19	57.15	Q	8
18.35	57.65	Q 1/2	8 1/4
18.53	58.21	Q 3/4	8 1/2
18.61	58.47	R	8 5/8
18.69	58.72	R 1/4	8 3/4
18.80	59.06	R 1/2	8 7/8
18.89	59.34	R 3/4	9
19.10	60.00	S	9 1/8
19.22	60.38	S 1/4	9 1/4
19.31	60.66	S 1/2	9 3/8
19.41	60.98	S 3/4	9 1/2
19.51	61.29	T	9 5/8
19.62	61.64	T 1/4	9 3/4
19.84	62.33	T 1/2	10
20.02	62.89	U	10 1/4
20.20	63.46	U 1/2	10 1/2
20.32	63.84	V	10 5/8
20.44	64.21	V 1/4	10 3/4
20.68	64.97	V 1/2	11
20.76	65.22	W	11 1/8
20.85	65.50	W 1/4	11 1/4
20.94	65.78	W 1/2	11 3/8
21.08	66.22	W 3/4	11 1/2
21.18	66.54	X	11 5/8
21.24	66.73	X 1/4	11 3/4
21.30	66.92	X 1/2	11 7/8
21.49	67.51	Y	12
21.69	68.14	Y 1/2	12 1/4
21.89	68.77	Z	12 1/2
22.10	69.43	Z +1/2	12 3/4
22.33	70.15	Z+1	13
22.60	71.00	Z+1.5	13.5
22.69	71.28	Z+2	-
22.92	72.00	Z+2.5	-
23.06	72.45	Z+3	-
23.24	73.01	Z+3.5	-
23.47	73.73	Z+4	-
23.55	73.98	Z+4.5	-
23.87	74.99	Z+5	-
24.27	76.25	Z+6	-