Amethyst Gemstone is a stunningly beautiful purple to bluish violet stone belonging to the Quartz Family. This gemstone is considered as a symbol of nobility, sincerity, security and peace of mind. Amethyst is the birthstone of February and also a substitute for blue sapphire, the gemstone of Saturn. Amethyst is also the wedding anniversary gemstone associated with the 4th, 6th year and 17th year of marriage. Amethyst is also referred to as "Bishop's Stone" and has been worn by even the Bishops of Churches.