About ring sizes
I use mm in diameter to define the sizes of the rings. If you're unsure about your size or how to measure it, here is a guide:
How to find your ring size
The most accurate method is to measure the internal diameter of a ring that already fits you well. Place it on a flat surface and measure straight across the inside in millimetres.
If you don't have a ring to measure, wrap a thin strip of paper snugly around the base of your finger. Mark where it overlaps, lay it flat, and measure the length in millimetres — this is your circumference. Use the table below to find your size.
Circumference (mm):
47.1
48.7
50.3
51.8
53.4
54.9
56.5
58.1
59.7
61.3
62.8
65.9
69.1
Diameter (mm):
15
15.5
16
16.5
17
17.5
18
18.5
19
19.5
20
21
22
EU:
47
49
50
52
53
55
56
58
60
61
63
66
69
US:
4½
5
5½
6
6½
7
7½
8
8½
9
9½
11
13
UK:
I
J
K
L
M
N
O
P
Q
R
S
V
Z
DE:
15
15.5
16
16.5
17
17.5
18
18.5
19
19.5
20
21
22
A note on fit
Fingers change size with temperature and time of day: they tend to be slightly larger in the evening and in warm weather. If you're between sizes, it is recommended to size up for wider bands and size down for thinner ones. If you're unsure, you're welcome to contact before ordering.