Amethyst is the birthstone of Aquarius (Water Bearer): Jan. 20 – Feb. 18 and the anniversary gemstone for the 4th and 6th year of marriage. Amethyst is colorless in its purest form. The finest quality Amethyst is medium to medium dark in tone, vivid in intensity, and purple, reddish purple to bluish purple in hue. by … Continue reading Amethyst