|
|
|
|
|
U.S. & Canada Standard
|
Great Britain
|
France
|
Germany
|
Japan
|
Switzerland
|
Diameter in Inches
|
Diameter in Millimeters
|
|
000
|
...
|
...
|
...
|
...
|
...
|
.390
|
9.91
|
|
00
|
...
|
...
|
...
|
...
|
...
|
.422
|
10.72
|
|
0
|
...
|
...
|
...
|
...
|
...
|
.454
|
11.53
|
|
1/2
|
A
|
...
|
...
|
...
|
...
|
...
|
...
|
|
1
|
B
|
...
|
...
|
1
|
...
|
.487
|
12.37
|
|
1-1/2
|
C
|
...
|
...
|
...
|
...
|
.503
|
12.78
|
|
2
|
D
|
41-1/2
|
13-1/4
|
2
|
1-1/2
|
.52
|
13.21
|
|
2-1/2
|
E
|
42-3/4
|
13-3/4
|
3
|
2-3/4
|
.536
|
13.61
|
|
3
|
F
|
44
|
14
|
4
|
4
|
.553
|
14.05
|
|
...
|
G
|
45-1/4
|
...
|
5
|
5-1/4
|
...
|
...
|
|
3-1/2
|
...
|
...
|
14-1/2
|
...
|
...
|
.569
|
14.45
|
|
3-3/4
|
H
|
46-1/2
|
...
|
6-1/2
|
6-1/2
|
...
|
...
|
|
4
|
H-1/2
|
...
|
15
|
7
|
...
|
.585
|
14.86
|
|
4-1/4
|
I
|
47-3/4
|
...
|
...
|
7-3/4
|
...
|
...
|
|
4-1/2
|
I-1/2
|
...
|
15-1/4
|
8
|
...
|
.601
|
15.27
|
|
...
|
J
|
49
|
...
|
...
|
9
|
...
|
...
|
|
5
|
J-1/2
|
...
|
15-3/4
|
9
|
...
|
.618
|
15.70
|
|
...
|
K
|
50
|
...
|
...
|
10
|
...
|
...
|
|
5-1/2
|
L
|
51-3/4
|
16
|
...
|
11-3/4
|
.634
|
16.10
|
|
...
|
L-1/2
|
...
|
...
|
11
|
...
|
...
|
...
|
|
6
|
M
|
52-3/4
|
16-1/2
|
12
|
12-3/4
|
.650
|
16.51
|
|
6-1/2
|
N
|
54
|
17
|
13
|
14
|
.666
|
16.92
|
|
7
|
O
|
55-1/4
|
17-1/4
|
14
|
15-1/4
|
.683
|
17.35
|
|
7-1/2
|
P
|
56-1/2
|
17-3/4
|
15
|
16-1/2
|
.699
|
17.75
|
|
8
|
Q
|
57-3/4
|
18
|
16
|
17-3/4
|
.716
|
18.19
|
|
8-1/2
|
...
|
...
|
18-1/2
|
17
|
...
|
.732
|
18.59
|
|
...
|
R
|
59
|
...
|
...
|
19
|
...
|
...
|
|
9
|
...
|
...
|
19
|
18
|
...
|
.748
|
18.99
|
|
...
|
S
|
60-1/4
|
...
|
...
|
20-1/4
|
...
|
...
|
|
9-1/2
|
...
|
...
|
19-1/2
|
19
|
...
|
.764
|
19.41
|
|
...
|
T
|
61-1/2
|
...
|
...
|
21-1/2
|
...
|
...
|
|
10
|
T-1/2
|
...
|
20
|
20
|
...
|
.781
|
19.84
|
|
10-1/4
|
U
|
62-3/4
|
...
|
21
|
22-3/4
|
...
|
...
|
|
10-1/2
|
U-1/2
|
...
|
20-1/4
|
22
|
...
|
.797
|
20.24
|
|
...
|
V
|
63-3/4
|
...
|
...
|
23-3/4
|
...
|
...
|
|
11
|
V-1/2
|
...
|
20-3/4
|
23
|
...
|
.814
|
20.68
|
|
...
|
W
|
65
|
...
|
...
|
25
|
...
|
...
|
|
11-1/2
|
...
|
...
|
21
|
24
|
...
|
.830
|
21.08
|
|
...
|
X
|
66-1/4
|
...
|
...
|
26-1/4
|
...
|
...
|
|
12
|
Y
|
67-1/2
|
21-1/4
|
25
|
27-1/2
|
.846
|
21.49
|
|
12-1/2
|
Z
|
68-3/4
|
21-3/4
|
26
|
28-3/4
|
.862
|
21.89
|
|
13
|
...
|
...
|
22
|
27
|
...
|
.879
|
22.33
|
|
|
|
|
|
|
|
|
|
|
|
© 2012 Scopelink, Inc. All Rights Reserved.
Engagement Rings & Things provides international ring sizes just in case a ring size for an out-of-country engagement ring is in order ...
for Great Britain, France, Germany, Switzerland or Japan
|
|
