Mix a squeeze of mild dish detergent with warm water in a bowl. Put the gold item into the soap mixture for a few minutes. Use a soft toothbrush & gently scrub the jewelry. Remove item from soapy water, rinse it and dry thoroughly with a soft cloth.
You can mix some dishwashing detergent, washing soda and household ammonia with plenty of warm water to make your own natural cleaner. Soak the jewelry in it for up to 10 minutes as need be, and you can use an old toothbrush to loosen dirt as well. Afterwards, rinse and dry.
You can clean your jewelry as simple as brushing your teeth. All you have to do is get a detergent soap ( bar or powder) and a used toothbrush (will do). Put a soap in the toothbrush and gently brush it on to the jewelry you are going to clean. Rinse. Do it again. Rinse thoroughly. Try it.
Line a bowl with aluminum foil, shiny side up. Put your jewelry in it. Next cover with baking soda and add boiling water. Let it sit, remove, and then rinse.
When making home made jewelry cleaner,a mild detergent or dish soap can be used and diluted with water.For a more intense cleaning solution,household ammonia can be added to the mix.
I usually take an old toothbrush add a little toothpaste and some washing up liquid, rub over the item leave for a few minutes then rinse off with warm water.