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Size Guide
Select Region
Select Size
Diameter (mm)
Circumference (mm)
UK Size
USA Size
UK Size
USA Size
Diameter (mm)
Circumference (mm)
E
2 1/2
13.6
42.6
F
3
14
43.8
G
3 1/4
14.4
45
H
3 3/4
14.8
46.2
I
4 1/4
15.2
47.4
J
4 3/4
15.6
48.6
K
5 1/4
16
49.8
L
5 3/4
16.4
51
M
6 1/4
16.8
52.2
N
6 3/4
17.2
53.5
O
7
17.6
54.7
P
7 1/2
18
56
Q
8
18.4
57.3
R
8 1/2
18.8
58.6
S
9
19.2
59.9
T
9 1/2
19.5
61.1
U
10
19.9
62.4
V
10 1/2
20.3
63.7
W
11
20.7
64.9
X
11 1/2
21.1
66.1
Y
12
21.5
67.3
Z
12 1/2
21.9
68.5
Find the right piece
Jewellery says something about the person who wears it, and at Farringdons, we can help you find the right piece for the right person.
