Don't know your ring size? We are here to help! Please refer to our sizing guide below or PRINT your FREE Ring Sizer Chart and let us know if you need any further assistance! If you are between sizes, order a larger size. Make sure your finger is at a normal body temperature (fingers shrink or expand depending on body and room temperature.) If your knuckle is much larger than your finger’s base, take two separate measurements and choose a size in between. You want a ring to fit over your knuckle, but not be too loose or it will shift around.