To clean your jewelry, use only a soft polishing cloth. Delanacre jewelry is hand-crafted in the United States of the finest in precious, semi-precious stones, high grade fresh water pearls, and Swarovski Crystals on 14k gold, 14k gold filled and sterling silver. 
As gemstones, mother-of-pearl and pearls are very delicate, you should not clean them with any cleaning agents, and should also avoid direct contact with chemicals such as chlorine, hairspray, perfume, detergent and lotion.