How to adjust the size of the ring? The professional approach is to go to the jewelry store for professional consultation and revision. Generally, jewelry stores can change the ring size. If the ring needs to be smaller, it should be cut into sections and then welded; If the ring needs to be enlarged, it can generally be enlarged to 1 size, and the ring circumference can be increased directly by punching, or the ring size can be increased by welding. However, there is a limit to the size of the ring from big to small, and it cannot be changed too much.