Important Information About Sizing Your Stacking Rings
As a general rule, the more rings you have on the same finger and the wider the stack, the more likely it is that you will need to SIZE UP when it comes to choosing a comfortable fit for your stack. This could be between 1/2 and 3/4 in US Ring sizes OR up by 1 or 2, maybe even 3 UK sizes, depending on how many rings you wish to wear at once. If you are unsure, it may be best to pop into a local jewellery shop and try on a few rings to get the best fit for you. It varies person to person as we all have different finger lengths.
I can send you a ring sizer if you wish to check your fit, but there are online conversion charts where you can measure your rings in mm or place them over circles to check your size. As a general rule, in the UK a size L would be considered small in ring size, a size N would be medium and a size P would be large.