Make a homemade ultrasonic cleaning solution by combining water, dishwashing detergent and ammonia together inside an ultrasonic cleaning machine. This type of cleaning solution is best used on hard stones without cracks. Creating the solution takes just a couple of minutes.
- Inspect the jewelry
Look at the stones in the jewelry to ensure there are no cracks. Additionally, check to make sure the jewelry contains only hard stones such as diamonds, rubies or sapphires.
- Add water to the machine
Place 2 cups of water in the ultrasonic cleaning machine.
- Add ammonia to the water
Pour 1 teaspoon of ammonia into the water.
- Add dish washing soap
Measure out 2 tablespoons of dishwashing soap, and pour it into the water and ammonia mixture. Read the ingredients on the dishwashing soap bottle to ensure it doesn't contain bleach or sodium sulfate, as these ingredients can dull diamonds.
- Run the machine
Turn on the ultrasonic machine, and allow it to run for at least 10 minutes. This causes the strong ammonia smell to dissipate.
- Stir the mixture
Stir the mixture with a clean wooden spoon before you place your jewelry in the cleaner. Do this gently to avoid creating a lot of soap suds in the water.