The harmonious-green colored gemstone Emerald, also known as Pachu or Panna, belongs to the Beryl mineral family. Astrologically, it represents the mild-natured prince of all planets, Buddha (Mercury). As the name indicates, Buddha is the endower of intelligence (buddhi) and is the wisest of all worlds. Wearing a green emerald enhances personal intellect and propels growth through sound education and good communication.