Rust is a common problem for jewelry, especially if it is made of iron or steel. Rust can cause jewelry to look dull and tarnished, and it can also damage the metal. There are a few different ways to clean rust off jewelry, depending on the type of metal and the severity of the rust.
For mild rust, you can use a soft cloth and a mild detergent to gently scrub away the rust. If the rust is more severe, you may need to use a stronger cleaner, such as vinegar or lemon juice. You can also use a commercial rust remover, but be sure to follow the directions carefully.