Diamond vs. Cubic Zirconia: How to Tell the Sparkle Apart

At first glance, it’s easy to confuse a cubic zirconia with a diamond. They both shine beautifully, they can be set in similar designs, and they look strikingly alike — especially when new.

But there are some key differences worth knowing, especially if you're shopping for something special or long-lasting.

Here’s how to tell them apart — in a friendly, no-pressure kind of way.

💡 What Is Cubic Zirconia?

Cubic zirconia (or CZ for short) is a man-made gemstone that mimics the look of a diamond. It’s made from zirconium dioxide and has been widely used in jewellery since the 1970s.

Why is it so popular?

• It sparkles brightly
• It’s extremely affordable
• It comes in a variety of cuts and sizes

At Freya Jewellery, we love CZ for playful fashion pieces and everyday sparkle.

💎 So What’s the Difference?

Let’s break it down simply:

Feature	Diamond	Cubic Zirconia
Origin	Natural or lab-grown stone	Fully synthetic
Hardness (Mohs)	10 (very hard)	~8–8.5 (softer)
Sparkle	Sharper, white light	More rainbow-like sparkle
Weight	Lighter	Heavier (for same size)
Price	High	Much more affordable

🕵️ How to Spot the Difference

If you’re trying to tell which is which, look for:

• Rainbow flashes in CZ (diamonds reflect mostly white light)
• A heavier feel in cubic zirconia stones
• Any fogginess or clouding over time (CZ can scratch more easily)
• The price tag — diamonds rarely come cheap!

💍 Which One Should You Choose?

There’s no right or wrong answer here — just what’s right for you.

• Choose a diamond if you're after something timeless, high in value, and incredibly durable (e.g. for engagement rings or heirlooms).
• Go for cubic zirconia if you want budget-friendly sparkle or trend-led styles without the long-term commitment.

At Freya Jewellery, we offer both — clearly labelled, fairly priced, and beautifully crafted.

🌟 Final Thoughts

Jewellery should make you feel amazing — whether it's a precious diamond or a playful CZ ring.

If you’re ever unsure, our team at Freya Jewellery is here to help. No pressure, just honest advice and sparkling suggestions.