The Difference between Cubic Zirconia and Diamond | Átrireal

Zirconia is a created stone and the best-simulated diamond in the world. While the two stones may look similar to the untrained eye, here are some subtle differences you should know.


While many people incorrectly think a diamond should have a clear appearance throughout, we must understand that a 'white' diamond can still have a yellow, gray, or brown tint. This is how diamonds are graded, the clearer the diamond, the higher the price.

Zirconia is created artificially in labs so it is more likely to be completely colourless so you won't see any blemishes and imperfections in the latter. While a real diamond has natural internal flaws in most cases, these inclusions can usually only be seen under a microscope. 


Diamond is known as the hardest natural stone. Zirconia is made of synthetic materials and it is not as hard as diamond. On the Mohs scale of hardness, it has only a value of 8.5 while diamond is graded 10. Hence, zirconia is more prone to scratches, making it look worn out in the process. It can also easily crack and burn under high temperatures. 

Quick tips to determine a cubic zirconia and a diamond : 

If you breathe on the stone and the fog from your breath disappears right away, it's a real diamond while zirconia will remain foggy for a longer time.

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