If you have chosen your jewelry with pearls remember that they are organic gems, and therefore should be treated with extra care. They should never be washed or immersed in water, left in sunlight, exposed to strong perfumes or exposed to chemicals. These can wear away the nacre (“mother of pearl”) and cause a color change. Wipe your pearls with a soft dry cloth after every outing and then store safely away until next time. Because pearls are very soft they are best stored in soft cotton or chamois pouches and never in plastic bags.
As a rule, if you own other pearl jewelry they should be stored separately and away from other kinds of jewelry to protect them from scratching and abrading your pearls.