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Zircon is the oldest known mineral on Earth, with deposits in Australia dating back to almost four and a half billion years, making it even older than the Earth's moon. It's found in all three types of rocks; igneous, metamorphic and sedimentary. The gemstone is often mistakenly confused with cubic zirconia cheap custom couples jewelry, which is actually an artificial compound manufactured within the confines of a chemical laboratory. During the Middle Ages, zircon was believed to invoke peaceful sleep, ward off demonic entities, while bestowing the wearer with a greater sense of honour, wisdom and chances of securing financial prosperity.

The name is derived from the Arabic word zargun, which itself is derived from the Persian words zar, meaning “gold” and gun meaning “color”. It is available in a range of colors including reddish brown, blue, green, yellow and colorless, which is often used as an imitation for diamond. Green is the rarest color, making it highly prized carrie necklace, while blue is the most popular color. Its categorised as either low, medium or high zircon. Hardness rating of 6 (low zircon) to 7.5 (high zircon) on the Mohs scale, making certain samples suitable for rings (although special care must be taken).