Shell Pearls are made from the inner lining of oyster shells, also known as Mother of Pearl. The substance is ground to a fine powder, shaped, dyed and coated with natural pearl nacre and then a protective coating to give it lustre & glow. Shell pearls, like most everything, vary in quality but may be quite beautiful and much less expensive than saltwater pearls.Crystal Pearls are pearls made with a crystal core. Their unparalleled harmonious and lustrous shimmer is achieved using a unique coating technology. It is the method to combine the quality of a perfect crystal core with the exquisite beauty of a pearl coating. Each pearl is enhanced with a pearlescent finish, to give them the look of traditional pearls. These economical options are great for everyday wear. In addition, the industry’s strict quality control ensures shell pearls will keep their color and shine and less likely to be affected by sweat and perfume. Indeed, they are more durable than cultured and freshwater pearls.