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Gemoro Testerossa® Diamond Tester

Item# 51-223

The ultimate in diamond fraud protection:
  • Easily identify diamonds, white sapphires & moissanite
  • Only GEMORO testers are recommended by Charles & Colvard and can detect F1 Moissanite
  • Designed in the USA with pride
$249.00

GEMORO testers set the standard for protection against diamond simulant fraud.

The GEMORO Testerossa features a number of proprietary technologies, including the only testing system capable of detecting the new low-conductivity Forever One™ moissanite; patented finger-grip pads, and an impact-resistant, ergonomically-shaped polycarbonate housing designed to fit your hand perfectly.

The Testerossa tells you what your eyes can't with its unique beep tones, user-programmable voice alert (can be set to English, German, Italian, Spanish, French, Russian, Mandarin Chinese, Japanese, Arabic or ringtone) and exclusive color-changing probe light indicator, which glows GREEN for diamonds, BLUE for moissanite, PINK for white sapphire and RED for metals. The Testerossa can even identify genuine sapphire watch crystals! The included rechargeable batteries give you two hours of continuous use, and in case you accidentally leave it on, the power-saving auto-off feature deactivates the unit after five minutes of inactivity.

In addition to the GEMORO Testerossa, your purchase includes the low-profile GEMORO UltraDock 3 charging station; adjustable GEMORO Test Stone Magnifier attachment; aluminum loose stone holder; batteries; multi-voltage 100V-240V AC adapter with micro-USB power cord; and a sleek carbon-fiber carrying case.

Customer Reviews

Price
Value
Quality
It seemed to work well at first, but after 3 to 4 months, it just wouldn't test anything (diamonds, cz's or moissanites) without having to adjust the small screw to fine tune it. It wouldn't make the "clicking" sound it makes when the probe/tip is pressed on the stone. Adjusting the screw to fine tune it worked O.K. for a little while longer, but now it won't test anything. The tip was never bent, never dropped and I am the only person who uses it. I am really upset that I now have to order another tester. I wish Ceres brand made one. I love the regular diamond testers that Ceres makes. Any suggestions????? (Posted on 1/15/18)
Value
Quality
Price
This tool will absolutely pay for itself with the first piece of low conductivity Moissanite that it finds. A must have if you are buying Diamonds. The speaking feature is a great addition! With a tip warranty of 10 years is great! (Posted on 10/15/15)
Quality
Price
Value
Prior to getting the Testerossa, I accidentally bought a pair of studs my old tester identified as genuine diamonds, that were the new moissanite that just hit the market. I'm a professional and I even got fooled! The good news is I bought this amazing tester and am confident it won't happen again since the Testerossa identified the studs right away. The testers is the easiest to use of all testers I've tried, and I love the design. My customers have been impressed by the talking feature too. I fully recommend this instrument. (Posted on 10/13/15)
375.00 In stock
Gemoro Testerossa® Diamond Tester 4.0 out of 1 5 based on 3 ratings. 3 user reviews.
It only lasted 4 months even though I was very delicate with it Review by Gem Buyer
Price
Value
Quality
It seemed to work well at first, but after 3 to 4 months, it just wouldn't test anything (diamonds, cz's or moissanites) without having to adjust the small screw to fine tune it. It wouldn't make the "clicking" sound it makes when the probe/tip is pressed on the stone. Adjusting the screw to fine tune it worked O.K. for a little while longer, but now it won't test anything. The tip was never bent, never dropped and I am the only person who uses it. I am really upset that I now have to order another tester. I wish Ceres brand made one. I love the regular diamond testers that Ceres makes. Any suggestions????? (Posted on 1/15/18)
Big money saver! Review by Saving Greef
Value
Quality
Price
This tool will absolutely pay for itself with the first piece of low conductivity Moissanite that it finds. A must have if you are buying Diamonds. The speaking feature is a great addition! With a tip warranty of 10 years is great! (Posted on 10/15/15)
Amazing New Tester Review by Diamond Pro
Quality
Price
Value
Prior to getting the Testerossa, I accidentally bought a pair of studs my old tester identified as genuine diamonds, that were the new moissanite that just hit the market. I'm a professional and I even got fooled! The good news is I bought this amazing tester and am confident it won't happen again since the Testerossa identified the studs right away. The testers is the easiest to use of all testers I've tried, and I love the design. My customers have been impressed by the talking feature too. I fully recommend this instrument. (Posted on 10/13/15)
metal price