Ring Size Guide

Find your perfect ring size

Choosing the right ring size is important for both comfort and security. If you are unsure, we recommend choosing the larger size.

Method 1: Measure a ring you already own

Choose a ring that fits the finger you want to wear the ring on.
Measure the inside diameter of the ring in millimetres.
Compare it with the table below.

Diameter (mm) EU size
15,7 mm 49
16,5 mm 52
17,3 mm 54
18,1 mm 57
19,0 mm 60
19,8 mm 62

Method 2: Measure your finger

Wrap a measuring tape or a strip of paper around your finger.
Mark where the ends meet.
Measure the length in millimetres.
Compare it with the table below.

Finger circumference (mm) EU size
49 mm 49
52 mm 52
54 mm 54
57 mm 57
60 mm 60
62 mm 62

Tips for the best result

Measure your finger in the evening when it is at its largest.
Do not measure cold fingers.
Wide rings can feel smaller in size. Consider choosing a larger size.
If you are between two sizes, we recommend choosing the larger one.

Need help?

If you are unsure which size to choose, you are always welcome to contact us at:

hello@lunnoire.com

We will be happy to help you find the right size.

Explore our engagement rings →

Back to blog