The color of Peridot gemstones are natural and not enhanced. Synthetic Peridot is produced, but this is not commonly done. Although the mineral Olivine is fairly common, the gem form of Peridot is more limited.The Peridot stone is a precious stone. ... The Peridot is the birthstone of those born in the month of August, this is a stone worn to enhance various positive traits. These gemstones are transparent with an oily lustre and are known to protect the wearer from the evil eye or negativity.