Diamond and Moissanite Testers

Can a diamond tester recognize artificial (man made, lab created) diamonds?
Unfortunately there is no electronic diamond tester or any other electronic device that can distinguish between artificial (man made, lab created) and natur...
Sun, 13 Jul, 2014 at 1:31 PM
Do electronic diamond testers need testing liquid?
No, electronic diamond, moissanite, and gemstone testers do not require any form of testing solution to operate.
Wed, 3 Sep, 2014 at 1:57 PM
GemOro UltraTester II & Pro-D Troubleshooting
Of the issues experienced with these testers, the below are the most common. If you have a problem with your  tester that isn't resolved by following...
Wed, 3 Sep, 2014 at 1:58 PM
When should I use a moissanite tester?
Since moissanite and diamond have similar thermal conductivity properties, most traditional electronic  diamond testers cannot distinguish between the two...
Wed, 3 Sep, 2014 at 1:59 PM
Is a diamond moissanite tester better than two separate testers?
If you are planning on testing a large quantity of loose stones, you'll be better off purchasing two separate  testers. This will allow you to save t...
Wed, 3 Sep, 2014 at 2:00 PM
My diamond tester's results change after the first test
Most diamond or diamond/moissanite testers work by measuring thermal conductivity of the stone being  tested. When you test a stone, the tester actually ...
Wed, 3 Sep, 2014 at 2:02 PM
My diamond tester produces inconsistent results
Please check if you are following the procedures below: While testing mounted stones, you should hold your tester in one hand and your jewelry pie...
Tue, 25 Aug, 2015 at 6:11 PM
My GemOro UltraTester II's tip is bent
The tester will still function properly. Gently straighten the tip and you're ready to get back to testing.
Wed, 3 Sep, 2014 at 2:03 PM
Why do some diamond testers have an LED light?
In less-than-adequate lighting conditions, an LED light can help you place the tester's tip accurately on the stone.
Wed, 3 Sep, 2014 at 2:03 PM
Will a diamond tester identify a diamond with 100% confidence?
A standard electronic diamond tester will accurately determine a stone to be either diamond or moissanite, but will be unable to identify the stone as diamo...
Wed, 3 Sep, 2014 at 2:03 PM