How Can You Test Sterling Silver at Home?
One of the easiest ways to test for sterling silver is to look for the authentication stamp. The stamp is likely STER, STERLING, 92.5, STERLING 925, S/S or 925/1000.
There are instances where the stamp is fraudulent. This method can be used if buying from a trusted store. Another way to test the metal is to rub a soft cloth over the surface. The genuine alloy leaves black marks from the tarnishing. New sterling jewelry has a coat to protect against this. This method is best for older jewelry. The next way to test sterling silver jewelry is to use a magnet. Authentic sterling silver jewelry is not magnetic.