If you want to choose a smaller error and a more appropriate ring size, you should use a professional tool, that is, a ring size rod specially used to measure the hand inch. This tool comes with a series of rings with different scale sizes. Put a suitable ring on one of the fingers to be measured, and then take off the ring and put it on the ring stick to check the value. This ring size bar is more common in jewelry stores.
One size bigger or one size smaller
1, the ring is worn after the finger, will not appear very tight, clenched fists will not appear tight muscle phenomenon, gently shake the wrist, will not appear loose phenomenon, so it is more appropriate.
2, you can also wear the ring on the hand, gently move the ring with your finger. If you can easily turn a circle, there will be no drop phenomenon, it means that the size of the ring is more appropriate, or bend your finger, and find that the ring can move freely with the hand, which is also OK.