Skip to content
500 yen OFF coupon for friend registration! LINE Official Account
500 yen OFF coupon for friend registration! LINE Official Account


How to measure your ring size・Ring gauge free rental service

For those who don't know their ring size.
We will teach you how to measure easily with things you have at home and how to use a ring gauge correctly. Please take this opportunity to find out your ring size so that you can enjoy the style of your fingertips even more.

how to measure ring size

[When measuring from your own ring]
Measure the diameter of your existing ring and check from the table below. We recommend that you measure accurately with a vernier caliper.

[When measuring with your finger]
Or you can easily measure using a sticky note or string, so please try it.
*This measurement method may differ from the actual ring size. We recommend that you measure your size as a guide and check the exact size with a ring gauge measurement.

≫About free ring gauge rental service

[1] Prepare a non-stretchable paper or octopus thread with a width of about 5 mm to wrap around your finger.
[2] Wrap it around the thickest part of the finger (around the second joint), such as the joint.
[3] Make a circle and mark the overlapped part. (not too loose, not too tight, image when wearing a ring)
[4] Unfold and measure the length from mark to mark, and check the table below.

ring size chart

number Finger circumference (mm) number Finger circumference (mm)
No. 1 40.8mm No. 15 55.5mm
No. 2 41.9mm No. 16 56.6mm
No. 3 42.9mm No. 17 57.6mm
No. 4 44.0mm No. 18 58.6mm
No. 5 45.0mm No. 19 59.7mm
No. 6 46.1mm No. 20 60.7mm
No. 7 47.1mm No. 21 61.8mm
No. 8 48.2mm No. 22 62.8mm
No. 9 49.2mm No. 23 63.9mm
No. 10 50.3mm No. 24 64.9mm
No. 11 51.3mm No. 25 66.0mm
No. 12 52.4mm No. 26 66.9mm
No. 13 53.4mm No. 27 68.0mm
No. 14 54.5mm No. 28 69.0mm

We recommend that you check the size before ordering.

For those who are worried about the size, we will lend you a ring gauge free of charge.

For customers who are worried about just checking the size chart, we also offer a free ring gauge rental service.

After confirming the approximate size in the size chart above, please contact us by chat or email ( about 3 sizes you are interested in.
We will send you a ring gauge of your desired size, so please check the size that fits your finger.

In addition, the size may be different in the morning and evening due to swelling of the finger. Even if it is troublesome, we recommend that you measure twice in the morning and evening .

■ About return of ring gauge

When we send the ring gauge, we will enclose a stamp, so please affix the stamp and return it within one week.

About ring size correction after delivery

Whether or not the ring can be resized after delivery and the cost will vary depending on the type of ring. Please check each product page or contact us.