How do I find the right ring size? 

1. Measure one of your current rings and find the diameter from edge to edge in millimeters.

2. If you don't own a ring you can use a string or piece of paper to wrap your finger. Mark with a pen where the string overlaps to measure the diameter of your finger in millimeters.  

3. Order the size closest to yours in the drop-down menu on the page of the ring you want to buy.

Note that adjustment should only be done once to avoid potential metal damage.