Amethyst stone is a well know semi-precious stone from the ancient time also known as Jamunia stone in Hindi. It is a purple color stone. According to Indian astrology, this is related to Saturn planet and used as a stone of Saturn. Like Sapphire, this is a stone of Gemini https://uberant.com/article/408961-amethyst-stone-price-benefits-quality-of-this-stone/