Panna is the birthstone for Virgo (Kanya) sunsign (23 Aug-23 Sep) and is the rashi ratna for Gemini (Mithuna). Ascendants of Taurus, Libra, Capricorn and Aquarius can also wear the Emerald gemstone. Emerald strengthens Mercury (Buddh) which showers upon its wearer Wit, Creativity, Art, Prosperity, Wealth, Health, Agility and a very Sharp Mind.Emerald is an extremely powerful stone which is ruled by Mercury. It blesses the wearer with creativity, imagination andexpression skills. It activates heart Chakra which is the seat of abundance and fulálment of all desires.