Generally experienced, skilled masters change the circle will not have traces. Ring change includes changing big and changing small, the method of changing the ring is mainly to add gold to change big, cut gold to change small and gasket to change small three methods. In addition to the washer method to change the small ring, the gold method and the gold cutting method need to be welded. At present, the welding polishing and electroplating technology after ring modification is very mature, and the welding marks will not leave traces after polishing and electroplating.
How to change the ring
2. Gold cutting method
Cut off a section of the ring and weld it;