Emerald, a variety of mineral Beryl, is one of the most fascinating and beautiful gemstones available in various shades of green color. The name of this remarkable gemstone comes from Greek ‘Smaragdos’, meaning ‘Green Stone’. Deep green is the most desired color in emeralds. Its hardness makes it very tough and durable which comes in between 7.5 to 8 on Mohs hardness scale and it is mainly found in Columbia, Brazil, Zimbabwe, South Africa, Afghanistan and USA. Flawless emeralds are very uncommon, and are noted for their great value, sometimes even more than diamonds.