It is an ornament that everyone likes very much and often wears, but because I usually don’t pay attention to it, sometimes I forget to take it off after doing sports, or accidentally touch some more corrosive things, resulting in serious discoloration of silver jewelry. Even if it turns black, it doesn't work how to deal with it yourself. At this time, we can send it to repair. In fact, every silver jewelry is basically electroplated. Electroplating is to make the silver jewelry look more beautiful and more textured, and also to prevent the silver jewelry from oxidizing, so when the silver jewelry we wear is black, we can’t do it. When processing, send it to the silver jewelry manufacturer. The manufacturer will first remove the original plating layer and re-electroplating. In this way, our originally black silver jewelry becomes a new one. The information comes from the Internet, please contact the previous one if it involves infringement. Article: How to properly maintain 925 silver jewelry