Ring Sizing Guide

AU/UK Size

US Size

Internal Diameter (mm)

US SIZE

F
F 1/2
G
G 1/2
H
H 1/2
I
I 1/2
J
J 1/2
K
K 1/2
L
L 1/2
M
M 1/2
N
N 1/2
O
O 1/2
P
P 1/2
Q
Q 1/2
R
R 1/2
S
S 1/2
T
T 1/2
U
U 1/2
V
V 1/2
W
W 1/2
X
X 1/2
Y
Y 1/2
Z

3
3 1/8
3 3/8
3 5/8
3 3/4
4
4 1/4
4 1/2
4 3/4
5
5 1/4
5 1/2
5 3/4
6
6 1/4
6 1/2
6 3/4
7
7 1/4
7 1/2
7 3/4
8
8 1/4
8 1/2
8 3/4
9
9 1/4
9 1/2
9 3/4
10
10 1/4
10 1/2
10 3/4
11
11 1/4
11 1/2
11 3/4
12
12 1/4
12 1/2
12 3/4

14.07 mm
14.17 mm
14.38 mm
14.58 mm
14.80 mm
15.00 mm
15.20 mm
15.40 mm
15.60 mm
15.80 mm
16.00 mm
16.20 mm
16.40 mm
16.60 mm
16.80 mm
17.00 mm
17.20 mm
17.40 mm
17.60 mm
17.80 mm
18.00 mm
18.20 mm
18.40 mm
18.60 mm
18.80 mm
19.00 mm
19.20 mm
19.40 mm
19.60 mm
19.80 mm
20.00 mm
20.20 mm
20.40 mm
20.60 mm
20.80 mm
21.00 mm
21.20 mm
21.40 mm
21.60 mm
21.80 mm
22.00 mm

Stevie Bleu

14.07 mm
14.17 mm
14.38 mm
14.58 mm
14.80 mm
15.00 mm
15.20 mm
15.40 mm
15.60 mm
15.80 mm
16.00 mm
16.20 mm
16.40 mm
16.60 mm
16.80 mm
17.00 mm
17.20 mm
17.40 mm
17.60 mm
17.80 mm
18.00 mm
18.20 mm
18.40 mm
18.60 mm
18.80 mm
19.00 mm
19.20 mm
19.40 mm
19.60 mm
19.80 mm
20.00 mm
20.20 mm
20.40 mm
20.60 mm
20.80 mm
21.00 mm
21.20 mm
21.40 mm
21.60 mm
21.80 mm
22.00 mm

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