The string test
Wrap a piece of dental floss or string around the part of the finger you want to measure.
Make sure they are very tight. Most people order rings too big.
Mark with a pen where one end of the twine overlaps the other.
Measure the distance between the two points in millimeters (mm). This is the circumference of your finger and is equivalent to your ring size (EU size).
If you are between two sizes, we recommend you round down to the next size. Buy your favorite ring.