To determine your ring size we advise you to use a length of string to measure the circumference of the chosen finger at its largest point. Pull the string as tight as is comfortable and draw a line where the ends meet. Using a ruler, measure the length from the end of the string to the mark that you have made. Having established the total length use the circumference measurement below to determine your size.

EUROPEAN	US	CIRCUMFERENCE (MM)
45	3.25	45
46	3.75	46
47	4	46.5
48	4.5	47.75
49	5	49.01
51	5.5	50.27
52	6	51.68
53	6.5	53.09
55	7	54.35
56	7.5	55.61
57	8	57.18
58	8.5	58.43
59	9	59.69
61	9.5	60.95
62	10	62.20
63	10.5	63.46
65	11	64.72
66	11.5	65.97
68	12	67.23
69	12.5	68.49
70	13	69.74

Should you require any further assistance, please contact our client services team on +44 (0)207 758 9775 (10AM - 6PM Monday to Friday) or email CLIENTSERVICES@DEBEERS.COM

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We offer complimentary and secure shipping to selected countries.

Returns and exchanges are free of charge.

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Ring Size Chart

EUROPEAN	US	CIRCUMFERENCE (MM)
45	3.25	45
46	3.75	46
47	4	46.5
48	4.5	47.75
49	5	49.01
51	5.5	50.27
52	6	51.68
53	6.5	53.09
55	7	54.35
56	7.5	55.61
57	8	57.18
58	8.5	58.43
59	9	59.69
61	9.5	60.95
62	10	62.20
63	10.5	63.46
65	11	64.72
66	11.5	65.97
68	12	67.23
69	12.5	68.49
70	13	69.74