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Writer's pictureSamuel Cini

Zircon

In the annals of the Middle Ages, legends wove tales of zircon's mystical properties, attributing its use to induce slumber, usher in prosperity, and foster wisdom. In contemporary times, zircon often finds itself mistakenly conflated with synthetic cubic zirconia, obscuring the fact that this gemstone stands as a remarkable mineral species, boasting a diverse array of colours.


Among its various hues, blue zircon commands particular attention, widely sought after yet reasonably priced in substantial carat sizes. Its captivating colour is frequently achieved through heat treatment, with most gems presenting minimal inclusions. Possessing an optical dispersion akin to that of a diamond and demonstrating double refraction, blue zircon shines most brilliantly when fashioned into cutting styles that magnify its luminosity and fiery brilliance. However, it is worth noting that zircon tends to be somewhat brittle and susceptible to abrasion, requiring prudent handling. Notably, in 2014, a fragment of a zircon crystal examined in Australia was declared as the oldest known rock fragment on Earth, estimated to be approximately 4.4 billion years old. Presently, the primary sources of high-quality gem-grade zircon are located in Thailand, Cambodia, and Sri Lanka.


Blue zircon holds the honour of being December's birthstone.

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