• IN RING 4mm (SILVER925)
  • IN RING 4mm (SILVER925)
  • IN RING 4mm (SILVER925)
  • IN RING 4mm (SILVER925)
  • IN RING 4mm (SILVER925)
  • IN RING 4mm (SILVER925)
  • IN RING 4mm (SILVER925)
  • IN RING 4mm (SILVER925)

IN RING 4mm (SILVER925)

Regular price
SIZE:

SILVER925

RING WIDTH: 4mm

#1-#20 (JCS Japanese Standard)
For other sizes, please contact us via CONTACT.

MIRROR POLISH

Please be careful to avoid dents or deformation on the surfaces and edges caused by dropping or applying pressure.

Items will be shipped within 3 to 14 business days after the order is placed.

NUMBER, CIRCUMFERENCE, DIAMETER
Reference chart for ring sizes, inner circumference, and inner diameter.

Japan
(JCS)

Japanese Standard
(Size)

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