Please be careful to avoid dents or deformations on the surfaces and edges caused by dropping or pressure.
DELIVERY
This product is made to order. After confirming your payment, please allow approximately 2 months for production, and we will ship it as soon as it is completed.
ABOUT RING SIZE
NUMBER,CIRCUMFERENCE,DIAMETER Ring size, inner circumference, and inner diameter chart
Japan (JCS)
Japanese Standard
ID (mm)
Inner Diameter (mm)
Circ. (mm)
Inner Circumference (mm)
ISO
International Standard
USA
CAN
UK
AUS
NER
-3
11 2/3
36.6
-2
12
37.7
-1
12 1/3
38.7
0
12 2/3
39.8
1
13
40.8
41
1
C
2
13 1/3
41.9
42
2
D
3
13 2/3
42.9
43
2.5
E
4
14
44.0
44
3
F
5
14 1/3
45
45
3.5
G
6
14 2/3
46.1
46
3.5-4
G-H
7
15
47.1
47
4-4.5
H-I
8
15 1/3
48.2
48
4.5-5
I-J
9
15 2/3
49.2
49
5
J
10
16
50.3
50
5.5
K
11
16 1/3
51.3
51
6
L
12
16 2/3
52.4
52
6.5
L-M
13
17
53.4
53
6.5-7
M-N
14
17 1/3
54.5
54
7-7.5
N-O
15
17 2/3
55.5
55
7.5-8
O-P
16
18
56.5
56
8
P
17
18 1/3
57.6
57
8.5
Q
18
18 2/3
58.6
58
9
R
19
19
59.7
59
9.5
S
20
19 1/3
60.7
60
10
T
21
19 2/3
61.7
61
10-10.5
T-U
22
20
62.8
62
10.5
U
23
20 1/3
63.8
63
11
V
24
20 2/3
64.9
64
11.5
W
25
21
65.9
65
12
X
26
21 1/3
66.9
66
Y
27
21 2/3
68.0
67
Z
28
22
69.0
68
29
22 1/3
70.1
69
30
22 2/3
71.1
70
(*ID = Inner Diameter, Circ. = Inner Circumference) Click here for our ring gauge rental service
