Emerald is a valuable gemstone and it is also known as Panna stone. Emerald is very helpful for increasing business, financial life, and professional life. Also, Students benefits aloat on wearing emeralds. Emerald improves psychics powers, intuition, sharpens memory, improves learning ability, communication. Emerald is also good for health, especially the nervous system. The Emerald Gemstone Ring should be worn in the Little finger. As the ruling planet is Mercury. Birth Sign Gemini & Virgo. According to Numerology, it symbolizes number 5.