zhart Diamond Tester Machine for Checking Fake or Genuine Diamonds Jewellery Gemstone Moissanite selector ii Tool for Professional and Home Use (#Without Battery)

Very great and useful product at a reasonable cost Very easy to use Recommended

Can differentiate if its a Glass imitation or Real Gem stone To a degree can figure out quality based on thermal conductivity Cannot differentiate LAB MADE OR NATURAL OR TREATED.. Quite useful though..

I purchased this product and put new battery in the tester but machine is not working Bad product and bad saller

i used this product and i liked it. Seller is very helpful. i shows accurate reading on diamond but not so accurate on other stones. But its Ok... i am happy with the product. its very easy to use.

I like this product.

Accurate. Affordable. Easy to use. My father is a gems and stones collector. It was very useful for him to find out if the stones are real or fake. Thanks for the product.

I dislike it it is showing fake readings with in one month it is not working, fake goods are sending showing one company and sending another company.

Good product works good