Clean your gold jewelry with dishwashing detergent
Pour a few drops of liquid dishwashing detergent in a bowl of warm water. Mix gently. For even better results, you can use sodium-free soda or sparkling water. Soak the gold jewelry into this solution for 15 minutes.
Rub each piece of jewelry with a soft toothbrush then rinse them with warm water. Wipe them with a soft cloth.
Use this method sparingly. Even though it’s very effective if you clean your golden jewelry with ammonia too often, it may affect gold. (Ammonia can darken even platinum).
Mix 1 part ammonia to 6 parts water. Soak golden jewelry in this mixture for 1 minute. You can remove them using a strainer. Rinse well under running water then wipe and polish them with a soft cloth.
Gold jewelry with gemstones
Clean jewelry with gemstones with a cloth soaked in dishwashing detergent solution. “Rinse” them with a cloth that has been dampened in clean water.
Use an old toothbrush to clean stains on jewelry with toothpaste. Rub the jewelry piece gently. Also, you can apply toothpaste on a cloth to polish golden jewelry. Rinse with clean water.
Boil them in water
If you have to remove oil, grease and wax from gold jewelry, boil them in water. As long as the piece is immersed in water nothing can happen to it and oil, grease and wax will float on the surface.