Megumi Nishikawa

お買い上げ金額が20,000円(税込)以上で 送料無料 (日本国内配送)

Megumi Nishikawa Jewelry logo

Are you unsure what ring size you have?

MN Jewelry Design rings mainly according to the US/CAN measurement system. If you want to translate our ring sizes – for example, diameter or japan ring size – see below the conversion table for dimensions and ring sizes.
Please check your ring size below.

US to Japan Ring Size Correlation Chart

DIAMETER (MM) US JAPAN
13
1
13.3
2
2
13.7
2 1/2
3
14
4
14.1
3
14.3
5
14.5
3 1/2
14.7
6
14.9
4
15
7
15.3
4 1/2
8
15.7
5
9
16
10
16.1
5 1/2
16.3
11
16.5
6
16.7
12
16.9
6 1/2
17
13
17.3
7
14
17.7
7 1/2
15
18
16
18.1
8
18.3
17
18.5
8 1/2
18.7
18
18,9
9
19
19
19.3
20
19.4
9 1/2
19.7
21
19.8
10
20
22
20.2
10 1/2
20.3
23
20,6
11
20.7
24
21
11 1/2
25
21.3
26
21.4
12
21.7
27
21,8
12 1/2
22
28
22.2
13
22.3
29
22.6
13 1/2
22.7
30
23
14
31