The ivory is banned and heavily regulated across the world, today's ivory is derived from teeth or tusks from animals like walruses, hippopotamuses, boars and sperm whales. Before, plastics, ivory was used to make many things such as piano keys and billiard balls. Today, ivory is still used for decorative art and jewelry. Jewelry that is made from ivory may need to be cleaned occasionally and can be lightly cleaned in your home. Here is some tips for cleaning the ivory jewelers.
1. Cut a lemon cleanly in half on a cutting board, using a sharp knife. Sprinkle some table salt onto the cut sides of each half.
2. Hold a lemon half in your hand and use the salted, exposed side to scrub your yellowed ivory item. Squeeze the lemon very gently as you work to release a small amount of juice. If necessary, apply more salt to the lemon as you scrub.
3. Set the ivory item to the side to air dry. Do not wipe away any of the juice or salt, and wait for all of the moisture to completely dry.
4. Soak a soft cloth in clean water and wring out the excess. Use the damp cloth to wipe down all surfaces of the ivory item. Reach into any tight cracks and crevices. When the juice and salt has all been wiped away, allow the piece to air dry.
5. Repeat the procedure if necessary. Even extensively yellowed ivory can be significantly whitened with just a few treatments.