To be sure your diamonds always sparkle, it is important to clean them periodically. Here are some recommended methods.
Mild Liquid Detergent
Soak your jewelry in a small bowl of warm, sudsy water made with any mild liquid detergent. Gently brush the diamond jewelry with a soft toothbrush while it is in the suds. Then, rinse each piece under warm running water. Pat dry with a soft, lint-free cloth. Make sure to always stopper your sink.
Household Ammonia
Place the jewelry in a small bowl containing a half-and-half solution of ammonia and cold water for thirty minutes. Lift out and gently tap around the front and back of the mounting with a small soft brush. Swish in the solution a second time, rinse and drain on tissue paper.