At GULDVIVA we use the inner diameter of the ring to measure and describe the size of our rings. Below you will find a guideline chart for how you can convert to other size measurements. You can also contact us with any questions about sizes at info@guldviva.com

Rings can be difficult to buy online, which is why we always offer one complimentary resizing within one (1) month of purchase.

Diameter		Circumference			Approx
mm	inches	mm	inches	DK / EU size	US Size	UK Size
15	0.59	47.1	1.86	47
15.25	0.60	47.9	1.89	48	4.5	I 1/2
15.5	0.61	48.7	1.92	49
15.75	0.62	49.5	1.95	49
16	0.63	50.3	1.98	50	5.5	J 1/2
16.25	0.64	51.1	2.01	51
16.5	0.65	51.8	2.04	52	6	M
16.75	0.66	52.6	2.07	53	6.5	N
17	0.67	53.4	2.10	53
17.25	0.68	54.2	2.13	54	7	O
17.5	0.69	55.0	2.16	55	7 1/2	P
17.75	0.70	55.8	2.20	56
18	0.71	56.5	2.23	57
18.25	0.72	57.3	2.26	57	8	Q
18.5	0.73	58.1	2.29	58	8 1/2	Q 1/2
18.75	0.74	58.9	2.32	59
19	0.75	59.7	2.35	60	9	R 1/2
19.25	0.76	60.5	2.38	60	9.5	S 1/2
19.5	0.77	61.3	2.41	61
19.75	0.78	62.0	2.44	62	10	T 1/2
20	0.79	62.8	2.47	63	10 1/2	U 1/2
20.25	0.80	63.6	2.50	64
20.5	0.81	64.4	2.54	64	11	V 1/2
20.75	0.82	65.2	2.57	65
21	0.83	66.0	2.60	66	11 1/2	W 1/2
21.25	0.84	66.8	2.63	67	12	Y
21.5	0.85	67.5	2.66	68
21.75	0.86	68.3	2.69	68
22	0.87	69.1	2.72	69	13 1/2	Z + 1.5