When shopping for luxury-style jewellery, many people come across two popular diamond alternatives: moissanite and cubic zirconia (CZ). While both can resemble diamonds, they are very different in quality, durability, and brilliance.
Understanding the differences between these stones can help you choose the best option for your jewellery.
What Is Cubic Zirconia?
Cubic zirconia is a synthetic gemstone widely used in affordable jewellery. It was created to imitate the appearance of diamonds at a much lower cost.
While CZ can look good initially, it tends to lose its shine over time and is more prone to scratches.
What Is Moissanite?
Moissanite is a premium gemstone known for its exceptional brilliance and durability. Originally discovered in a meteor crater, moissanite is now created in laboratories using advanced technology.
Unlike cubic zirconia, moissanite is designed to maintain its brilliance for years.
Brilliance Comparison
One of the biggest differences between moissanite and cubic zirconia is sparkle.
Moissanite has a higher refractive index than diamonds, meaning it reflects more light and produces a stronger sparkle.
CZ stones, on the other hand, tend to appear dull over time.
Durability
Durability is another major difference.
On the Mohs hardness scale:
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Moissanite scores 9.25
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Cubic zirconia scores 8–8.5
This means moissanite is significantly more resistant to scratches and everyday wear.
Long-Term Value
While cubic zirconia may seem cheaper initially, it often needs to be replaced because it loses its shine.
Moissanite maintains its brilliance and durability for many years, making it a much better long-term investment.
The Smarter Choice
For anyone looking for the diamond look with superior durability and shine, moissanite is clearly the better option.
That’s why many modern jewellery brands now focus on moissanite instead of cubic zirconia.