But there are usually two places to adjust: professional factories and personal workshops. Of course, there will be differences that everyone can't see.

For example, enlarge the ring:

Professional factory: cut off the middle and low end of the ring, measure the desired size, add gold and weld together, and finally polish and electroplate to restore the original state.

Personal workshop: hit the middle and lower part of the ring with a hammer to make it bigger, but the wall of the ring will become thinner, and finally polish and electroplate it back to its original state.

There are many factors, so I won't give examples here. If you want to change the ring number, I suggest you go to the corresponding brand or local professional jewelry club to adjust it, which is also a guarantee for your jewelry.

I hope my answer can help you, hee hee. .