Womens Diamond Engagement Ring

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Ring Size Guide

Find Your Ring Size

Measure the inside diameter of a ring that fits comfortable on your chosen finger, then match it to our size chart below.If you already know your international size, the chart will guide you seamlessly to the UK equivalent.

How to Measure Your Diameter

Inside Diameter	UK	EU	USA
13.2 mm	D	41 1/2	2
13.4 mm	D 1/2	42	2 1/4
13.6 mm	E	42 3/4	2 1/2
13.8 mm	E 1/2	43 1/2	2 3/4
14.0 mm	F	44 1/4	3
14.2 mm	F 1/2	45	3 1/4
14.4 mm	G	45 3/4	3 1/2
14.6 mm	G 1/2	46 1/2	3 3/4
14.8 mm	H	47 1/4	4
15.0 mm	H 1/2	48	4 1/4
15.2 mm	I	48 3/4	4 1/2
15.4 mm	J	49 1/2	4 3/4
15.6 mm	J 1/2	50	5
15.8 mm	K	50 3/4	5 1/4
16.0 mm	K 1/2	51 1/4	5 3/4
16.3 mm	L	52	6
16.5 mm	L 1/2	52 3/4	6 1/4
16.7 mm	M	53 1/2	6 1/2
16.9 mm	M 1/2	54	6 3/4
17.1 mm	N	54 1/2	7
17.3 mm	N 1/2	55 1/4	7 1/4
17.5 mm	O	56	7 1/2
17.7 mm	O 1/2	56 3/4	7 3/4
17.9 mm	P	57 1/2	8
18.1 mm	P 1/2	58	8 1/4
18.3 mm	Q	58 3/4	8 1/2
18.5 mm	Q 1/2	59 1/2	8 3/4
18.8 mm	R	60	9
19.0 mm	R 1/2	60 3/4	9 1/4
19.2 mm	S	61 1/2	9 1/2
19.4 mm	S 1/2	62 1/4	9 3/4
19.6 mm	T	63	10
19.8 mm	T 1/2	63 3/4	10 1/4
20.0 mm	U	64 1/2	10 1/2
20.2 mm	U 1/2	65	10 3/4
20.4 mm	V	65 3/4	11
20.6 mm	V 1/2	66 1/2	11 1/4
20.8 mm	W	67 1/4	11 1/2
21.0 mm	W 1/2	68	11 3/4
21.2 mm	X	68 3/4	12
21.4 mm	X 1/2	69 1/2	12 1/4
21.6 mm	Y	70	12 1/2
21.8 mm	Y 1/2	70 3/4	12 3/4
22.0 mm	Z	71 1/2	13
22.2 mm	Z+1	72	13 1/4
22.4 mm	Z+1/2	72 3/4	13 1/2
22.6 mm	Z+1 1/2	73	13 3/4
22.8 mm	Z+2	73 3/4	14
23.0 mm	Z+2 1/2	74	14 1/4
23.2 mm	Z+3	74 3/4	14 1/2
23.4 mm	Z+3 1/2	75	15