Mother of Pearl is a sharp layer birthed on the inner lining of the oyster’s shell. Most mollusk shells have this iridescent surface that gleams in different colors. This lining acts like a protector for the shellfish that gets inside the mollusk. The Mother of Pearl stone never becomes as valuable as the Pearl gemstone. Because it’s easier to excess than a real pearl. The Prices of these two are increasing with time, and still have the tag of being more valuable. Mother-of-pearl jewelry is distinguished significantly from pearl jewelry.