What’s The Difference Between Diamond and Cubic Zirconia?

If you are shopping around for a new piece of jewelry and find yourself asking “what’s the difference between diamond and cubic zirconia?”, well, then you’ve come to the right place!

Diamond and Cubic Zirconia

Estimated reading time: 3 minutes

What is the difference between diamond and cubic zirconia?

In the jewelry world, diamonds are the gold standard. They’re real and precious stones that have been around for billions of years. Cubic zirconia (CZ) is a synthetic stone that’s been around since the 1930s.

If it’s impossible to tell the difference between a CZ and a diamond using just your eyes, why would you want to buy a diamond? Well, there are several reasons:

  • Diamonds Are More Valuable

Despite their similar appearances, diamonds will retain or increase in value over time. You can sell a diamond for its appraised value, which means you’ll get your money back if you decide to sell. The same cannot be said for cubic zirconia. It’s not as valuable as diamonds because it’s cheaper and synthetic (made in a lab).

  • Diamonds Are Harder Than CZ

Diamonds are the hardest natural material on earth. They’re so hard they can only be scratched by another diamond or certain minerals like corundum (the other source of gem-quality material besides diamonds).

Cubic zirconia is softer than real diamonds—and they can also accumulate scratches with consistent wear and tear, unlike actual diamonds!

Is cubic zirconia real?

So, is cubic zirconia real? The short answer is yes. Cubic zirconia is a manufactured gemstone created from a compound of zirconium dioxide and yttrium oxide. It was chosen as a diamond substitute because of its brilliance, clarity, and durability.

Cubic zirconia can’t be considered a “fake” diamond because it’s not trying to be one—it’s just an excellent substitute for people who don’t have thousands of dollars to spend on the actual thing.

How can you tell the difference between a real diamond and cubic zirconia?

You might be asking yourself, “Does a diamond really have more weight than a cubic zirconia?” In short, yes; cubic zirconias are fabricated using synthetic diamond. For those of you who are just curious, the answer is yes.

If you’re looking to purchase jewelry and want to know the difference between real diamonds and cubic zirconias, here’s what you should look for:


You can’t tell the difference between a diamond and cubic zirconia with the naked eye. While it may seem like you’re getting the same sparkling look for less, there are some very important differences between these two stones that mean one is worth significantly more than the other.

Cubic Zirconia looks like a diamond, but it’s actually made of zirconium dioxide (zirconia). It’s created in a lab and has become increasingly popular over recent years. The benefit of getting something that looks just as good as your dream ring with real diamonds is obvious, but there are important differences to be aware of when considering buying one.

Also See: What Is The Cheapest Cut Diamond?

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