
Zircon: Meaning, Colours, and the Real Gem Cubic Zirconia Gets the Blame For
Zircon is December's oldest and most brilliant birthstone, a natural gem with diamond-like fire that has spent fifty years being confused with cubic zirconia, the cheap synthetic that stole a name close to its own. They are not the same thing, not even close. Here is the honest guide to what zircon means, its real colour range from electric blue to fiery red, why blue zircon is heated, the double refraction and fire that give it away, the truth about its faint radioactivity, why it is the oldest mineral on Earth, and how to buy and wear it without chipping it.
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