Mother of Pearl is a hydrated gemstone, so it is essential to keep it away from direct sunlight, strong sources of heat or very dry atmospheres. If Mother of Pearl is left to dry out its surfaces crack and it becomes less resistant to ware and tear. Never use strong abrasives or alcohol to polish your Mother of Pearl sterling silver jewelry, as this will destroy its play of color.
store your Mother of Pearl sterling silver jewelry in a dark cool place, and keep it looking its best by wiping it occasionally with a damp cloth. Wear it often; Mother of Pearl jewelry loves the bodies' natural oils. The Nizams of India, famous for their pearl treasures, used to adorn their court eunuchs with pearl jewelry as their body oils kept the pearls in perfect condition!