Emerald also known as Panna, gemstone of Mercury(बुध) , popularly known as Budh (बुध) in Vedic astrology. Mercury is the governing planet of intellect and communication. Therefore, wearing the Emerald Gemstone can benefit in enhancing the functions of the brain like memory, intellect, intuition and communication. It is green in color, various shades of green from light green to dark green.
The green color of Panna (Emerald) is due to the chromium element .
Emerald is considered hot in nature. It can do wonders for one’s intelligence.