Said to provide assistance during sleep and promoting wisdom Zircon goes back to the Middle Ages. This gem gets its name from the Persian word ‘zargun’ which translates to the color gold. If you fancy this beautiful vibrantly colored gem be sure to check its heft, as zircon is one of the heaviest gems available. Mined in Srilanka, Cambodia, Australia, and Thailand zircons can easily be told apart from Other gems. Colorless zircon is commonly called ‘Matara’ in Srilanka after the name of the city it is mined in. Because of its low hardness zircons are ideal for use in necklaces and earrings that undergo less wear and tear on a daily basis.