Mother of Pearl is a beautiful shimmering material that’s very popular in all kinds of jewelery, in art, watches, furniture, and household décor too. Like real pearls, it’s an organic substance, meaning that it comes from a living creature, plant or organism. The iridescent uniqueness, gorgeous shine, versatility and organic origin make mother of pearl a sought-after substance. Mother of Pearl is the colloquial name given to the iridescent substance that forms the inner layer of the shell of some molluscs. This substance is commonly known as nacre.