Peridot is a vibrant green gemstone that is a variety of the mineral olivine. It is formed deep within the Earth and brought to the surface through volcanic activity. The color of peridot can range from yellow-green to olive green, with the most prized shade being a rich, vivid green. This gemstone has been used in jewelry for thousands of years and is often associated with the month of August as its birthstone. Peridot is also believed to have protective qualities and is sometimes referred to as the "evening emerald" due to its bright color that remains visible in artificial light.