Zircon which is named Jarkan stone in Hindi is a natural, semi-precious gemstone that belongs to the Nesosilicates mineral family. It is discovered in various color varieties such as white (colorless) blue, yellow, red, orange, green, etc. The colorless variety of this gemstone is often recognized as the astrological substitute for precious diamonds. It is also regarded as the birthstone of December month and can also use for healing and jewelry purposes.