We offer Amethyst Stone. Amethyst, the traditional birthstone for the month of february, is available in small and large sizes, although as with all gemstones, very large sizes in rich, deep colors have always been rare. Designers celebrate amethyst as the ideal choice choice for jewelry because of its regal color, variety of sizes and shapes, affordability, and wide tonal range, from light to dark purple.amethyst, the traditional february birthstone, was worn by the ancient romans as a talisman to ward off the intoxicating powers of bacchus.