Rule of Thumb: A proper fitting ring should slide over your knuckle with a little friction and fit snugly on your finger, but not too tight. You should feel resistance and need to apply a little extra force to remove the ring backwards over your knuckle.

How do you know if a ring is too loose?

The ring slides over your knuckle without resistance

Most people have large knuckles and smaller fingers, which is why a ring can be hard to put on, but once over the knuckle, can feel loose and spin around. If the ring slides too easily over your knuckle, with no resistance, it's too loose and should be resized.

Should a ring spin on your finger?

The basic reason why your engagement ring, or any ring would spin is simple… It's too big for your finger! When there's too much gap between your ring and finger, it makes a ring loose, wobble around, and spin.