Size guide

It is not always easy to know your size when it comes to jewellery, so here we have gathered information on what to keep in mind when shopping with us in relation to sizes.

Size guide for rings

At GULDVIVA we use the inner diameter of the ring to measure and describe the size of our rings. Below you will find an indicative table for how to convert to other sizes. You can also contact us with questions about sizes, at [email protected]

Rings are hard to buy online, which is why we always offer free sizing up to 6 months after purchase so you can wear your ring properly.

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