1. Measure the diameter of a ring which already fits you (be sure to measure the inner diameter).


2. Wrap a piece of thread around your finger and then measure the length of the thread. NB: make sure that you have allowed space for the ring to pass over the joints of the finger!


3. Print-off our ring template to cut-out and use.
4. Order our free ring-sizing tool from 21DIAMONDS(send an e-mail to care@21DIAMONDS.in with ‘Ring Sizer’ in the subject field; don’t forget to include your address!)


5. If you order a ring and select ‘measurements needed‘ in the ‘Ring size’ field, we will send you the ring-sizing tool automatically and add the measurements when you have sent them to us.

If your ring does not fit – no problem. We offer one free alteration to the ring size as part of our service.

You will find further information here under link.