About Ring Size Indications
Ring sizes on each product page are indicated by S, M, L, and Japanese size (number).
If you don't know how to measure your size
If you are unsure of your size, we recommend using the smartphone app "Ring sizer".
You can easily measure an approximate size by aligning your existing ring on your smartphone screen.
Ring Size Chart
| Ring Size (Japan) |
Inner Diameter (mm) |
Circumference (mm) |
| 1 |
13 |
40.84 |
| 2 |
13.33 |
41.89 |
| 3 |
13.66 |
42.94 |
| 4 |
14 |
43.98 |
| 5 |
14.33 |
45.03 |
| 6 |
14.66 |
46.08 |
| 7 |
15 |
47.12 |
| 8 |
15.33 |
48.12 |
| 9 |
15.66 |
49.22 |
| 10 |
16 |
50.27 |
| 11 |
16.33 |
51.31 |
| 12 |
16.66 |
52.36 |
| 13 |
17 |
53.41 |
| 14 |
17.33 |
54.45 |
| 15 |
17.66 |
55.5 |
| 16 |
18 |
56.55 |
| 17 |
18.33 |
57.6 |
| 18 |
18.66 |
58.64 |
| 19 |
19 |
59.69 |
| 20 |
19.33 |
60.74 |
| 21 |
19.66 |
61.78 |
| 22 |
20 |
62.83 |
| 23 |
20.33 |
63.88 |
| 24 |
20.66 |
64.93 |
| 25 |
21 |
65.97 |
Ring Width and Sizing Tips
The feel of a ring size can vary depending on its design and width. Wider rings (designs with more volume) tend to feel tighter even at the same size as thinner rings because they have a larger surface area touching the finger. Therefore, when choosing a wide design, we recommend ordering one size larger than your usual size.
About Size Exchange
If the ring size delivered happens to be incorrect, we will accept a size exchange if you contact us within one week of purchase (for domestic shipments). Please feel free to shop with confidence.
International Ring Size Conversion Chart
Ring size standards vary by country and region.
If you know your overseas size, please refer to the conversion chart below to find your suitable size.
International Ring Size Conversion Chart
| Japan |
America (US) |
Italy |
| 1 |
1 |
1 |
| 2 |
2 |
2 |
| 3 |
2.5 |
3 |
| 4 |
3 |
4 |
| 5 |
3.5 |
5 |
| 6 |
3.75 |
6 |
| 7 |
4 |
7 |
| 8 |
4.5 |
8 |
| 9 |
5 |
9 |
| 10 |
5.25 |
10 |
| 11 |
5.75 |
11 |
| 12 |
6 |
12 |
| 13 |
6.5 |
13 |
| 14 |
7 |
14.5 |
| 15 |
7.5 |
15.5 |
| 16 |
7.75 |
16.5 |
| 17 |
8 |
17.5 |
| No. 18 |
8.5 |
18.5 |
| No. 19 |
9 |
19.5 |
| No. 20 |
9.5 |
21 |
| No. 21 |
9.75 |
22 |
| No. 22 |
10 |
23 |
| No. 23 |
10.5 |
24 |
| No. 24 |
11 |
25 |
| No. 25 |
11.5 |
26 |
For those having trouble choosing a ring size
"I'm worried if it will fit my finger..."
"I want a slightly smaller (or larger) size."
If you have any requests or questions regarding sizing, please feel free to contact us.
We will do our best to help you find the most beautiful fit for your hand.
Also, if the size doesn't fit after your purchase, please rest assured that we will exchange it for you. For detailed conditions, please refer to Returns and Exchanges.
If you have any other questions, please feel free to contact us through the following channels:
