Jewels

If you’re asking if silver go bad, the answer is no. Unlike perishable commodities, silver, being a stable chemical element, does not degrade or “expire” over time. However, it can still be affected in specific ways, which might be interpreted as “going bad”. 

Gold does not “go bad” in the sense that it deteriorates over time, as it is a chemical element that is stable and does not degrade. However, gold can be damaged or altered in certain ways.