Diamond Tester, Professional Diamond Gem Tester Pen with 10x Magnifier and Tweezers for Novice and Expert (Battery Included)

PEOPLE PEOPLE PEOPLE: YOU MUST READ INSTRUCTIONS AND PROPERLY CALIBRATE AND IT WORKS PERFECTLY FINE. I'm seeing people say it doesn't work, can't tell difference between stones and moissanite and diamonds BUT IT'S PROBABLY BECAUSE THEY AREN'T PROPERLY CALIBRATING. AFTER PROPER CALIBRATION. (You have to read the instructions haha) All my diamonds and my moissanite tested as diamonds as they both should. My topaz did not register as diamond so that means IT WORKS properly.

Performed as advertised, amazing! Get it? Amazing from Amazon. Anyway, simple, accurate and easy to. Thanks!

It shows moisinite to be the same as real diamond

It does the job

The size is good. Comes with some helpful accessories. The way they have it set it lights up red lights up to indicate a diamond, it should be green. The constant beep is a little annoying. Other than that when the setting is calibrated the right way it works.

Love this

The unit works; however, I believe it was a return or a used one, the diamond tester was upside down in the carrying case that comes with it. Also, the tip that you place on a diamond has an individual little plastic/rubber slip on cover that was off, probably because the tip was sticking out of the carrying case. The case is simple and self-explanatory as it has a hard little section portioned off inside for the tip of the diamond tester to be placed inside while not in use. I should return the unit because the battery that came with it was "DEAD" it didn't have enough power to even turn the unit on. I had to buy a new 9V battery which cost me $7.00 and some change. I choose this particular unit because it came with a battery and then I end up having to buy one as I needed to use the unit, plus I wanted to make sure it was working. The diamond tester is easy to use, but because of the poor handling of the unit and the dead battery I can only give it 1 star.

I am glad this wasn't expensive. It worked immediately. I need it to decipher antique jewelry. Thanks!

Useful at an affordable price. Hope this lasts.

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