Diamond Tester, Professional Jewelers' Gemstone Detector, High Accuracy Diamond Tester Pen Professional (Metal Detection Limitation)

Fast shipping and great product

I must say this item is working great out the box. i bought a few items that was said to be moissanite and they read moissanite/diamond. it was decent price to do what i want to do.

Took it out of the box put the battery in, follow the instructions however, all the thing did was beep even with the cover on and the price point is perfect not to send it back. Don’t waste your money.

Works great. I tested it with a real diamond and a fake one and it passed the test. It is easy to use and I found very accurate

Easy enough to use, all you can rely upon it to do accurately is to weed out any glass or crystal stones (2-4 range). A good CZ reads an 8 or 9, while a diamond reads usually the same. Without any carbon inclusions, there’s no way for an amateur like me to tell the difference between the two while using this.Glad it was cheap.

It's alright not bad I'm glad it's wireless and works ass it should so far

You really need to read the instructions to understand what all the beeps mean with each light. Works pretty good as far as I can tell.

Love it! Works absolutely perfect. It saved me from being scammed. When I received a ring I ordered i immediately had a funny feeling just by the color and clarity of the ring..So I immediately purchased this for 9.00 i think..Shipping was quick. I tested the diamond or should I say CZ ring! Sure enough they never expected someone to test it i guess. Tried it on different jewelry just to make sure I was doing it right. I was given my money back on the scammer ring and I purchased another from another company and I could instantly see the difference. Sure enough I tested it, and it immediately read positive. I would recommend.