Nacre also known as mother of pearl, is an organic–inorganic produced by some molluscs as an inner shell layer; it is also the material of which pearls are composed but most importantly It is strong, resilient, and iridescent. This is what has originally drawn me to it for some of our jewelry recently. Shop our collection of vintage inspired, natural stones, brass, precious gemstone jewelry in Singapore- at https://www.shoplustre.com/