It is written in the stars in luminous, irridecent color. Mother of pearl is the inner shell layer of which a pearl is made. It is truly the mother of pearls. The zodiac symbols are strung on a fine, sparkling chain that is 14k gold plated brass + coated to resist tarnish and create a hypoallergenic surface. It is delivered on a beautiful, gold foil printed card with zodiac sign details on the back.