Thai rubies are mostly dark and brownish-red. Although its name is simply a French word derived from the Arabic for green, peridot has always been surrounded by complex superstitions. It was believed to inhibit enchantments, to protect its wearer from evil spirits and to glow in the dark. Its color ranges from a springtime yellow-green to a warm olive green. Peridot is also distinguished by its soft, velvety appearance.
Color is the most important quality for peridots.
Hence, the greener the peridot, the higher its value. Mined on the island of Zebirget in the Red Sea since ancient times, peridot also comes from Burma, although most is found in Arizona and the southwestern United States. Considered pure and sacred and to confer peace and wisdom on its owner, sapphire is said to refuse to shine if worn by the wicked. Contemplation of a sapphire was also said to cleanse the soul. Sapphire is a member of the corundum family.