Of all the precious metals we use in producing our jewelry, gold is the easiest to care for. Gold is a non-reactive metal, that resists tarnish and oxidation because it does not bond chemically with anything in ambient air. In fact you must work fairly hard to damage gold chemically. However; there are a few tips for keeping your gold jewelry in top condition.
Chemicals: While you are unlikely to damage the metal itself, you can dull the surface of your gold items by exposing them to chemicals. It is recommended that you avoid exposing your gold jewelry to any chemicals.
Cleaning: gold is very easy to clean. Simply make a mild detergent solution with warm water and dish soap and let your item soak for up to three hours. Use a soft toothbrush to remove stubborn discoloration and grime. Do not use any abrasive materials or polishing compounds on your gold jewelry as you can damage the surface.
Storage: you should store your gold items separately as they can scratch each other. A simple wipe down with a soft 100% cotton cloth before storing will suffice.