You can purchase the cleaners or make your own. It's just a matter of using a bath of warm water and a few drops of liquid dish washing soap to soak your gold jewelry in. However, do NOT do it with opals or pearls. They are porous stones and need to be treated differently. I use an old toothbrush to scrub areas that are hard to get to. You could also use a solution of 50% water and 50% ammonia.
I also use a small ultra sound cleaner that can be purchased in most department stores and vibrates the dirt off of the jewelry. It does a great job of cleaning your jewelry.
Once you soak and scrub the items, rinse them in warm water and dry with a soft cloth. Let them air dry for a few hours before putting your sparkling clean jewelry away.
By HerkDia from Baltimore, MD
How can I clean gold earrings?
Sorry, Southern Saver, you should not use ammonia on costume jewelry. It will ruin most of it. For thirteen years I have been making and selling an ammonia free jewelry cleaner called Reflections that is safe for all metals and stones, even opals and pearls. Ammonia also leaves a residue on the back of diamonds and they will be cloudy in a few days. Please be careful about recommending ammonia, as it is very harsh.