https://rashiratanjaipur.net/semi-precious-stones/amethyst The Amethyst Gemstone is the most precious stone among all gemstones. The Amethyst stone is also known as Katila in Hindi. Amethyst is a violet variety The name Amethyst derives from the Greek word ametusthos, meaning "not intoxicated," and comes from an ancient legend. It is the official birthstone for the month of February. Amethyst has transparent to translucent clarity and a vitreous luster.