Emerald Gemstone is a Precious Stone. It is from the family of Cordium Mineral. This stone brings fortune and prosperity to its wearer. It is also known as Panna Stone in India. The beauty of this stone is very famous among all Gemstones. Emerald Stone is ruled by the planet Mercury. May is considered to be the birth month of this stone. This gemstone holds a respective place in the history of the Gemstones.