ring size


About custom sizes
If the size you want is not listed on the product page, please purchase a "custom size" and contact us using the form below to let us know your desired size.

Example of contact: Men's size 14, Women's size 12

[Points to note]

  • Custom sizes available (for pairing)
    Women's: 6 to 15 Men's: 12 to 22

    (For normal rings)
    Size 7 to 15
  • If you would like a different size than those listed above, please contact us using the form below.
  • Depending on the design, it may be difficult to make it in the size you want.
  • We do not accept cancellations or returns due to customer convenience.

*Please enter your name, email, and phone number exactly as you did when placing your order.

{formbuilder:85024}

Size Guide

Ring size Inner diameter (mm) Inner circumference (mm)
No. 1 13.0 40.8
No. 2 13.4 41.9
No. 3 13.7 42.9
No. 4 14.0 44.0
No. 5 14.4 45.0
No. 6 14.7 46.1
No. 7 15.0 47.1
No. 8 15.4 48.2
No. 9 15.7 49.2
No. 10 16.0 50.3
No. 11 16.4 51.3
No. 12 16.7 52.4
No. 13 17.0 53.4
No. 14 17.4 54.5
No. 15 17.7 55.5
No. 16 18.0 56.5
No. 17 18.4 57.6
No. 18 18.7 58.6
No. 19 19.0 59.7
No. 20 19.4 60.7
No. 21 19.7 61.8
No. 22 20.0 62.8
No. 23 20.4 63.9
No. 24 20.7 64.9
No. 25 21.0 66.0
No. 26 21.4 67.0
No. 27 21.7 68.0
No. 28 22.0 69.0

*Please note that slight differences may occur depending on the product design.



How to measure size

How to measure ring size with string and ruler

  1. Prepare a string and place it around the second joint of the finger on which you want to wear the ring.
  2. Wrap the thread around your finger.
  3. Mark the thread as shown in Image 3 below.
  4. Measure the length with a ruler.


*There may be errors depending on how you measure. If you want to measure your ring size accurately, we recommend using a ring size gauge or having it measured at an accessory shop.


Recommended Articles:


Available in a wide range of ring sizes from thin to thick

How do you measure your ring size? Find out how to size your rings, from thin to thick.

How to measure your wedding ring size

Don't make a mistake! How to measure your wedding ring size. Things you should know before buying



About size changes

Within 7 days of receiving the product,
We offer free size changes up to ±2 sizes.

  • Only unused rings are accepted.
  • Engraving on products is available at an additional cost.
  • It will take approximately 2 weeks to 1 month.
  • If the item is deformed or damaged, it may not be eligible for free shipping.
  • We will contact you once we have checked the condition of the product.

The following services are available for a fee.
  • Size changes for made-to-order products
  • Size change of ±3 or more
  • Resize engraved rings
  • Changing ring size after 8 days from delivery
* Ring size change: ¥2,500 or more + shipping * Engraved ring size change: ¥3,000 or more + shipping

If you would like to change the size, please request a repair here.