Peridot is a member of the Olivine family and is treasured in Hawaii as the goddess Pele’s tears. The island of Oahu even has beaches made out of tiny grains of peridot. The fresh lime green of peridot is its distinctive signature. Peridot is the birthstone of August and today is primarily mined in Arizona. Faceted peridot in sizes above five carats are rare but they are found in Burma and in China. The most valued color is a dark olive-green.