Uploaded June 2021 | Updated September 2026, 35 minutes ago
For a full write up on fake diamonds and CZ, go to:
beyond4cs.com/cubic-zirconia-vs-diamond-what-are-the-differences
In this video, we use a diamond tester that is commonly found on platforms like Amazon and eBay to test a cubic zirconia ring and a diamond engagement ring.
If you are someone who is wondering how to tell if a diamond is real, this video will show you exactly how the diamond heat probe tester work against most simulated diamond rings.
In the market, the most common "fake diamond" simulant is cubic zirconia (CZ) as it resembles and looks alot like a real diamond to most laypeople. To the untrained consumer, it would be very difficult to tell a real diamond by eye and you can purchase an affordable diamond tester like the one I used in the video above to do DIY tests at home yourself.
This testing device works on the principle of a heat probe which is used to identify and differentiate between gemstones using their thermal conductivity.
While scams aren't that common in jewelry stores, there are many unethical sellers on unregulated platforms like Craigslist and eBay where cubic zirconia rings that look real are used to rip off unsuspecting buyers.
With a portable diamond tester, you can easily filter out common simulants and find out whether a diamond is real or not.
Here are additional readings on fake diamonds and simulants such as moissanite:
beyond4cs.com/faq/moissanite-vs-diamond
beyond4cs.com/faq/how-to-spot-a-fake-diamond/identify-a-moissanite
The best places to buy a diamond ring safely and reliably can be found here:
beyond4cs.com/best-place-to-buy-engagement-ring
If you want to buy a diamond tester, you can do so at the following links:
beyond4cs.com/go/amazon-diamond-tester
beyond4cs.com/go/ebay-diamond-tester
For a more professional level of testing to differentiate between diamonds and common gemstones, I recommend the Presidium gemstone tester:
beyond4cs.com/go/amazon-presidium
If you liked this video, give it a thumbs up. If you didn't, leave a comment and let us know why and the areas we can do better. As always, shop safe.
For a full write up on fake diamonds and CZ, go to:
beyond4cs.com/cubic-zirconia-vs-diamond-what-are-the-differences
In this video, we use a diamond tester that is commonly found on platforms like Amazon and eBay to test a cubic zirconia ring and a diamond engagement ring.
If you are someone who is wondering how to tell if a diamond is real, this video will show you exactly how the diamond heat probe tester work against most simulated diamond rings.
In the market, the most common "fake diamond" simulant is cubic zirconia (CZ) as it resembles and looks alot like a real diamond to most laypeople. To the untrained consumer, it would be very difficult to tell a real diamond by eye and you can purchase an affordable diamond tester like the one I used in the video above to do DIY tests at home yourself.
This testing device works on the principle of a heat probe which is used to identify and differentiate between gemstones using their thermal conductivity.
While scams aren't that common in jewelry stores, there are many unethical sellers on unregulated platforms like Craigslist and eBay where cubic zirconia rings that look real are used to rip off unsuspecting buyers.
With a portable diamond tester, you can easily filter out common simulants and find out whether a diamond is real or not.
Here are additional readings on fake diamonds and simulants such as moissanite:
beyond4cs.com/faq/moissanite-vs-diamond
beyond4cs.com/faq/how-to-spot-a-fake-diamond/identify-a-moissanite
The best places to buy a diamond ring safely and reliably can be found here:
beyond4cs.com/best-place-to-buy-engagement-ring
If you want to buy a diamond tester, you can do so at the following links:
beyond4cs.com/go/amazon-diamond-tester
beyond4cs.com/go/ebay-diamond-tester
For a more professional level of testing to differentiate between diamonds and common gemstones, I recommend the Presidium gemstone tester:
beyond4cs.com/go/amazon-presidium
If you liked this video, give it a thumbs up. If you didn't, leave a comment and let us know why and the areas we can do better. As always, shop safe.










