Rianne — Find Your Ring Size

Match your finger circumference (in millimetres) to the recommended EU ring size and UK equivalent.

Finger Circumference (mm) Recommended Size (EU) UK Equivalent
4544G
4645H
4746H ½
4847I ½
4948J ½
5049K
5150L
5251L ½
5352M
5453N
5554O
5655P
5756Q
5857Q ½
5958R ½
6059S ½
6160T ½
6261U
6362V
6463W
6564X
6665Y
6766Z

Find Your Size

If You Have a Ring

You may refer to the size of your existing ring if you plan to wear it on the same finger. Check if your ring has its size engraved on the inner surface and verify its size by downloading the printable sizing tool.

We recommend using a basic ring design such as a wedding ring; otherwise, you may try with various ring shapes. Please note that wider rings may require a larger size than those with smaller widths.

If You Don’t Have a Ring

For the most accurate results, we invite you to book an appointment at your nearest boutique for assistance in finding your size.

If you would like to receive a ring sizer, please contact us for further assistance.

Choosing the Right Size

  • You can easily put it on.
  • It can rotate around the finger.
  • You do not lose it when you move.

Finger size may vary slightly throughout the day; you may need to try it multiple times to confirm a comfortable fit. Please note that the same fingers on different hands will likely differ in size.

If you remain unsure, our complimentary return policy will allow you to exchange your ring for a different size. Please note that engraved rings or rings showing signs of wear will not be eligible for return.