Emerald is a gemstone and a variety of the mineral beryl colored green by trace amounts of chromium or sometimes vanadium. Beryl has a hardness of 7.5–8 on the Mohs scale.
 
Emeralds are gem varieties found in the beryl mineral with a vibrant, distinctly green colour. They originate inside igneous, metamorphic, and sedimentary rocks around a small number of locations worldwide. As per the earliest references, emeralds were called "marakata," a Sanskrit term meaning "the green of growing things".
 
Country Of Origin : India