Siziviki Diamond Tester Pen Pro High Accuracy Jewelers' Diamond Detector

For the price, I really didn’t have high expectations but I didn’t want to spend a crazy amount on a tester. I first tested it using stones I already knew were real vs fake, and have since used it on diamonds, moissanite and CZ’s and I’m happy to say that everything tested accurately! It really wasn’t hard to use like some reviews say, just read the instructions. It really works, and for the price you can’t go wrong!

Its working. Make a sound when its a real diamond. Doesn't work on other gems

I was hoping that this diamond tester would work better, I tested several items & none were accurate. It is easy to use but the quality isn’t great. It’s a low price but you get what you pay for. Thank you

It’s good/ okay. It works (i think) but honestly I’m not really sure how accurate it is. I’m using to test raw diamonds and it will say it’s real on the first time and if i do it again 10 secs later it doesn’t.. i tried it on fair and real diamonds jewelry and it does the same with the real diamonds- only beeps the first time. But it did not give me a false positive on the fake diamonds

Good high quality and good to carry around with you when needed I tested at the pawn shop and the this guy told me they are real diamonds and I took my tester out and it was fake diamonds. The guy was shock. Did not expect me carrying a tester sucker can lie to me

This item works really well and is accurate when detecting diamonds and semi precious gemstones. I have tested diamond jewelry and other semi precious jewelry gemstones with this and use other methods of testing gemstones as well. This tester is accurate every time. It has saved me money many times.

I think it works. Hard to deal with.

great product

Awesome

Nice true

Not working

Broken nib and battery don’t work

Gems stone per kaam nhi krta