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The Best Diamond Testers

Updated March 30, 2020

To help you find the perfect diamond tester, we continuously put forth the effort to update and expand our list of recommendable diamond testers. Our team collects, edits and publishes new information, in order to present it to you in an accurate, significant and neatly arranged way.

Our Picks

Runner-ups: 1 Best Diamond Tester Alternatives

Presidium Presidium Multi Tester image

Presidium Multi Tester

  • Reliable and accurate: Instantly verify the authenticity of colorless...
  • Easy TO use design: Ergonomic handheld design with a rubberized ant...
  • Thinnest retractable probe tip: Retractable probe tip that ensures c...
* Last update of prices was on 2020-03-30 08:50:26 via PA API. Prices or conditions may have changed in the meantime.

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Buying Guide for Diamond Testers

GemOro 0776 Ultratester 3+

Top Rated Diamond Testers

If you're looking into finding the best rated diamond tester, you should probable check out the GemOro 0776 Ultratester 3+. We looked at various sources of reviews and found this one to have the best mix between review count and average rating stars.

Salmue Jewerly Tester

Lowest Price

Often, going for the best price is a simple but good option. With a price of $43.19 (last checked on March 30, 2020), we do not list any other diamond testers cheaper than the Salmue Jewerly Tester. Just remember that it's not always the best option to go for the cheapest one.

Presidium Gem Tester

The Diamond Tester with the Most Reviews

With at least 53 reviews and counting, the Presidium Gem Tester might be another option to consider. This large amount of reviews signalizes that many people are using it, with most of them beeing satisfied.

High Class

It's quite rare that the saying "You get what you pay for" turns out incorrect. If you have the money on the sideline, feel free to choose the most expensive item from our list: The Presidium Gem Tester currently sells for $229.00.

Most Clicked Diamond Tester

If you trust us and our users, feel free to check out the GemOro 0776 Ultratester 3+. Our statistics say that it is the most favorite Diamond Tester from the list above.


If you're still undecided, I would recommend that you go with the masses and choose the top selling diamond tester: The Salmue Jewerly Tester for currently View on Amazon (last checked on March 30, 2020).

That's it for now, please remember that this list is updated on a regular basis.

Diamond Tester Reviews

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Further Reading on Diamond Testers

New: our editorial list of additional articles. We decided to gather informartion all around the internet and present you a list of helpful, external links to interesting reads about Diamond Testers reviews, pros & cons and similar products.
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Do Your Own Research

Do you want to know more about diamond testers? Check out the links below to gain knowledge about the whole topic of diamond tester products.

… In this case, the so-called diamond - testers are very convenient. These devices for express identification are based on the measurement of one or several physical parameters of tested materials – thermal conductivity, electrical conductivity, refractive index, and optical …

… Abstract. The invention relates to substitutes of real gems for the purpose of calibrating of commercial diamond testers and for verification of their correct operation … Such objects are useful for calibration and quality control of commercial diamond testers …

Diamond Testers Related Video: Moissanite v. Diamond Testers: Pass or Fail?

GIA Grad + Founder and Front Man of F&B Michael tests both Diamonds and Moissanite with 3 different hand held Diamond Tester. Check out to see what we ...

Disclaimer: This video was not made by us, but we found it interesting enough to embed it here.


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