Skip to main content Zircon | Boston Gems

Treatment / Enhancement

Brown zircon is heated to make it blue, yellow, or colorless.


Zircon is mined in Cambodia, Sri Lanka, Vietnam, and Thailand. In its natural state it is a rich golden brown color.


In the middle ages, zircon was said to aid sleep, bring prosperity, and promote honor and wisdom in its owner. It was used as an imitation for diamond before synthetic cubic zirconia was invented because of its extreme brilliance. Although rose zircon is the birthstone for October it rarely comes in this color. A copper or cinnamon color is more common.


Zircon’s edges can be easily worn down on its facets so it should be stored and handled with care. Keep it from contacting other gems or objects. Zircon can be treated with heat or steam, but should not be placed in the ultrasonic.