Siziviki Diamond Tester Pen Pro High Accuracy Jewelers' Diamond Detector | Professional Jewelers Gem Tester, Jewelry-only Detection, High-precision Diamond Test, Portable Pen for Fast Gem Verification

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

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 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

Works as described.

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

Works great. Before using talk to copilot on your phone or pc to get good instructions better than the supplied pamphlet.

It arrived on time and the product looks great, but looks are deceiving because it’s not the best diamond tester you can get. It’s hard to get it to work and when it does work, it works like it should but hard to tell if it’s real diamond or not.

I purchased the Diamond Tester Professional Jewelers’ Gemstone Detector mainly to verify estate jewelry and loose stones before taking them to a jeweler, and I’ve honestly been impressed with how reliable and straightforward it is Lightweight and portable This is a consumer-level tester, not a replacement for a certified gemologist or advanced lab equipment. It’s best used as a quick screening tool rather than a final appraisal device.

Awesome

Nice true

Broken nib and battery don’t work

Gems stone per kaam nhi krta

Bad product