|In modern astrology, the Pisces star sign is associated with amethyst. Pisces are born between February 20th and March 20th. The Pisces is exceptionally adaptive. It earns this magical ability from being the last sign of the Zodiac, incorporating aspects from every sign that precedes it. Represented by the fish, it can seamlessly swim against any current, but too much difficulty can take its toll on the Pisces, making amethyst the optimal stone to match it.