Emerald Stone is a beautiful and stunning gem and it is one of the top three colorful stones in the universe. Ruby and sapphire are also counted in the top three colorful gems list. This stone is a derivative of beryl and beryl is a mineral which is a mixture of aluminum and beryllium. It gives the stone a blue-green color in the world, and it can wear it not only for astrological benefits but also for the purpose of fashion.