How to use an ultrasonic cleaning machine to clean diamonds?

To clean a diamond safely in an ultrasonic cleaner, first ensure the stone is secure in its setting with no loose prongs, then prepare a mixture of warm water and a few drops of mild, ammonia-based jewelry cleaner in the tank; place the diamond item in the provided basket, submerging it completely, and run the machine for a short cycle of no more than three to five minutes to dislodge dirt and grime without causing vibration damage, after which you must carefully remove the item, rinse it thoroughly with clean water, and pat it dry with a soft, lint-free cloth.