Sizing rings is a fickle business and every mm counts. To find the ring size you can take a photo of a ring that already fits you on a ruler - make sure the very middle of the ring is on the edge of the ruler and I can easily see the diameter of the ring {see example image above}. Send the image to hello@milliesavage.com including your order number 

If in doubt the best solution is to go to your local jeweller {or come into our shop~ 337 Smith st, Fitzroy, Victoria} and they/ we will tell you - this is the safest best option!