Emerald Stone, also known as Panna, is a precious green gemstone from the mineral beryl. It is associated with the planet Mercury (Budh) in Vedic astrology and is believed to enhance intelligence, communication, creativity, and business skills.

It is generally recommended for people whose Mercury is strong or beneficial in their birth chart, such as those in professions related to communication, writing, teaching, business, or finance. However,wearing an Emerald Stone should be done only after proper astrological advice to ensure it is suitable for the individual.