The peridot stone is typically a light green color, ranging from yellow-green to olive-green. The color is due to the presence of iron in the crystal structure of the mineral olivine, which is the mineral that peridot is composed of. The intensity and shade of the green color can vary depending on the amount of iron present in the crystal, as well as other factors such as the presence of other minerals and the lighting conditions. Peridot is a popular gemstone and is often used in jewelry, particularly in earrings, necklaces, and bracelets.