Zircon is one of December’s three official birthstones, alongside turquoise and tanzanite. Elegant, sparkly and rich in history, it’s a gemstone that deserves far more recognition than it often receives. Turquoise is one of three recognised December birthstones, alongside tanzanite and zircon. You can explore all December birthstones in our complete guide.
Unfortunately, zircon is frequently confused with cubic zirconia — a completely different, man-made material. In reality, natural zircon is a genuine gemstone, prized for its brilliance and fire, and has been worn in jewellery for centuries.
If you are intrigued about the History of Birthstones you can refer to our guide here.
What Is Zircon?
Zircon is a naturally occurring gemstone found in a wide range of colours, including blue, white, golden, brown and green. Blue zircon is the variety most commonly associated with December and is especially valued for its diamond-like sparkle.
Some of the oldest zircon crystals on earth are over 4 billion years old, making it one of the most ancient gemstones known.
Zircon vs Cubic Zirconia: What’s the Difference?
This is one of the most common questions we’re asked.
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Zircon is a natural gemstone formed in the earth
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Cubic zirconia is a laboratory-created diamond simulant
While cubic zirconia is widely used in affordable jewellery, zircon has its own history, value and beauty — and should not be confused with its synthetic namesake.
The Colour and Brilliance of Zircon
Zircon is admired for its exceptional brilliance and dispersion, meaning it reflects light beautifully and can display flashes of colour similar to a diamond.
Blue zircon is often created by gently heat-treating natural brown zircon to enhance its colour — a stable and accepted practice within the jewellery industry.
White or colourless zircon was historically used as a diamond alternative long before modern simulants existed.
The Meaning and Symbolism of Zircon
Zircon has long been associated with:
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Wisdom and insight
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Prosperity and success
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Protection during travel
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Clarity of thought
Traditionally, zircon was believed to promote restful sleep and bring peace to the wearer, making it a fitting gemstone for the reflective close of the year.
Zircon in Jewellery
Zircon is a versatile gemstone that works beautifully in a range of jewellery styles. It is commonly set in silver or white gold, where its brilliance really stands out.
From classic stud earrings to elegant pendants and rings, zircon suits both traditional and contemporary designs. Blue zircon, in particular, makes a striking yet refined alternative to sapphire.
Caring for Zircon Jewellery
Zircon measures around 6–7.5 on the Mohs hardness scale, making it harder than turquoise but softer than sapphire or diamond.
To keep zircon jewellery looking its best:
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Avoid hard knocks or knocks against other jewellery
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Remove before strenuous activity
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Clean gently with warm water, mild soap and a soft cloth
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Avoid ultrasonic cleaners and harsh chemicals
Stored carefully, zircon jewellery will retain its sparkle for many years.
Where Is Zircon Found?
Zircon is mined in several parts of the world, including:
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Cambodia (known for fine blue zircon)
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Sri Lanka
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Myanmar
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Australia
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Thailand
Each source can produce slightly different colours and characteristics.
Choosing Between December’s Birthstones
December’s birthstones offer wonderfully different personalities:
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Turquoise for vibrant colour and ancient tradition
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Tanzanite for rarity and deep, velvety hues
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Zircon for brilliance, sparkle and timeless elegance
Zircon is a perfect choice for those who love classic gemstones with a little extra light-catching magic. If zircon isn’t your style, you may also love tanzanite, known for its deep blue-violet hues or turquoise,
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