What Is Cubic Zirconia? Cubic Zirconia vs Diamond Explained

Cubic zirconia, often shortened to CZ, is a man-made stone loved for its clear sparkle. It may look similar to a diamond, but the two are made from different materials. If you enjoy sparkling everyday jewellery, CZ gives you plenty of styles to explore.

Cubic zirconia vs diamond: What is the difference?

A diamond is made of carbon. Cubic zirconia is made of zirconium dioxide. CZ is not a diamond, and it is not a lab-grown diamond either.

For everyday wear, the key difference is durability: diamond is more resistant to scratches. Cubic zirconia offers a sparkling look at a usually much lower price, making it easy to try different designs.

What should you check when buying CZ jewellery?

Look beyond the stone. The metal, plating and setting also affect how a piece feels and how you should care for it. Check the details on each product page before choosing.

For an elegant pair, explore our Oval Zirconia Drop Earrings. For a colourful accent, take a look at the Pink Zirconia Ring. You can also browse all our jewellery to find a style that suits you.

How do you care for cubic zirconia?

Gently wipe your jewellery with a soft cloth after wearing it, and store pieces separately when possible. Always consider the material of the whole piece, including its metal and finish, before cleaning it.

Frequently asked questions

Is cubic zirconia a real diamond?

No. It can look similar to a diamond, but it has a different composition.

Is cubic zirconia the same as zircon?

No. Zircon is a naturally occurring gemstone; cubic zirconia is man-made.

Is cubic zirconia jewellery waterproof?

The stone alone does not tell you whether a piece of jewellery is waterproof. The metal, finish and construction matter too. Check the care information for the individual product.