The stone of mythology and myths emerald is one of the 4 most precious stones in the world. The emerald stone has ornamented queens in every period of history as a jewel for years. The emerald stone is also known as loyalty stone. Emerald does not shine as much as other stones but its color is eye-catching and impressive. This stone gives peace and happiness according to some beliefs. Today, the most beautiful emeralds are produced in Colombia. The emerald stone has many cut shapes like the same diamond. The most preferred cut is Emerald cut. The maintenance of the emerald stone is also important. It needs to be lubricated at regular intervals to regain its vividness and smooth surface.