Features:

  • Professional Diamond Selector II will indicate genuine diamond or fake
  • Uses large / small switches for testing diamonds
  • Emits audible sounds to easily differentiate the readings
  • Batteries: 1 x 9v Battery (not included)
  • Package Contents: 1 x Diamond Tester
Great price, works great.easy to use.

I had one of these at the pawn shop for testing and this works just as good as those ones who cost $200. Totally worth it.

Pleasantly Surprised!

I had been curious about diamond testers and wanted one but never really got around to buying one until a friend of mine wanted me to order him one. This had good feedback and was inexpensive so I figured why not and quite honestly I was pleasantly surprised at how well it worked! So pleasantly surprised that right after my friend got his, I ordered myself one, too. Between the two of us we have found 5 diamond rings we would never have known were diamonds. It came neatly packaged with instructions on how to use. I wish the instructions were a little more in depth for people who need a little more help (I'm a visual learner so the instructions were hard for me to grasp). All in all a great little diamond tester for a very reasonable price!

works perfectly. You calibrate based on stone size and ...

works perfectly. You calibrate based on stone size and temperature. not clear in the manual but there is a grid on the back of the unit. keep hand touching metal plate on back of unit... it works by measuring resistance. well worth the money! Anyone who complains about the "feel" of a $10 tool is free to spend $100 and have the same complaint :/

Accurate and Even Tests Gemstones!

I purchased this item because I had realized I have been burned a few times on buying jewelry that was claimed to be genuine. This item does not only test for diamonds, but you can also gauge the gemstones with this as well. If you know what the hardness of a sapphire or opal is, you can use this to gauge whether or not it's genuine. Ex. The hardness of a diamond is 10. If you know that corundum (ruby/sapphire etc) is a 9 and you test the stone and it ranks up there near a diamond but not quite, then you can assume that the gemstone you're testing is a genuine ruby or sapphire. However, if the "Ruby or sapphire" gemstone ranks very low, you can almost bet that it is maybe a quartz or topaz. Of course, this isn't an exact science with the tester, but it will give you a good idea of if your gemstone is what they are claiming it to be. Hardness scales of random gemstones can be found online everywhere so you can use those for references. The diamond tester, I have found to be rather accurate. You do have to be careful with this item, since if you are trying to test diamond CHIPS or very small diamonds in large settings, and it hits the metal it will go off with a rather loud, continuous beeping noise to say "Error" that it's hitting the metal. Suggestion: Use the tester on a genuine diamond (one you're certain is diamond) so you can get a feel for what it sounds like when it hits the 10 spot on the scale and what sound it makes. Also, try to test it on a metal to also see what it sounds like. Once you know how to read the tester, it'll be very easy to use. Instructions come with it and you can find YouTube videos that will show you how to use this as well. Turn on tester. Set on level surface and wait. 1 red light will come on. Wait for TWO red lights to light up. Once second light is lit up, you are ready to test! Pen for size reference. Comes in a nice case, with velcro closure. Has a pocket on the side to hold your metal diamond/gemstone grounding tool. This is used when a stone is not fixed into a setting. You MUST ground your stone before testing. Comes with a few different size compartments. Overall, great item. I recommend it to anyone that is in the jewelry business, gemstone collecting and even hobbyists buying and selling collections.

Does exactly what it's intended to do - Check Diamonds

I tried out several times before giving my honest review. All my diamonds beeped correctly. Small diamonds were difficult to test because of the surrounding metal. (Understandable) Tester was extremely easy to use. Fun little gadget to play around with all the sparkly gems.

Works great!

Followed the instructions and had no trouble using this diamond tester. Worked perfectly for my two 1 carat diamonds and even for small diamonds in ring settings. I bought this tester because I thought my lovely, recently deceased mother-in-law had left me a treasure of diamonds but instead discovered she liked costume jewelry :( 👵🏻

I think it works great for personal use

I think it works great for personal use. I tried it on my .35ct stud earring. I first tried to use it without following instructions (used a different setting other than the recommended). It didnt do anything. Next I tried to use it and set to the correct setting for the weigh of the diamond. It beeped and identified it as diamond. Too bad that I dont have another sample that I can test at the moment. But so far, it works. And I am happy.

Worked and inexpensive.

First one did not work at all. Easy exchange. The second one worked perfectly. Was easy to use. Just followed directions. The odd thing was very small rubies registered a few line movements. And this mysterious large pink stone register 4 lines movements. But never enough to get to the beeping red. Wonder what that means. Glass and cz registered no movements. Great to have confirmed the few pieces of diamond jewelry I have are real.

Surprisingly works

My mother raves about this. It really does work, and accurately as well. She's tested it many times, and my mother has a lot--a LOT--of stones. Also, it's very simple to figure out. It comes with instructions, and after the first use, she didn't need them anymore. She doesn't know English very well, so that says a lot.

Works Very Well For Amateur Analysis

This review is for the HDE High Accuracy Professional Jeweler Diamond Tester For Novice and Expert. Fine, it tests various stones, and does reliably indicate a diamond vs. a lab created stone such as Moissanite and the synthetics from De Beers (the diamond mine people). Once I found the instructions and read them I was able to use this tester on a wide variety of gems and get a good idea as to what they were, and whether real or not. The instructions are well written and easy to follow. If you’re looking for an inexpensive and quick way to test gem stones, this is a good buy. If you need to know if you’ve got s dismond, Moissanite or other stone, you’ll need to spend around $200. For my purposes, this HDE tester is fine.

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