How To Tell The Difference Between Moissanite And Diamonds?

The only way to tell that something isn't diamond with 100% certainty (aside from scientific inspection) is if it fails to pass the four C's of diamonds. If moissanite doesn't have any flaws or inclusions and has been cut well enough, clarity should be the only factor that will give it away.

It is important to know whether moissanite will pass a diamond test. This includes the clarity and color of your stone.

Diamond moissanite tester can be a helpful tool as part of a multi-stage test, but should not be solely relied upon. These little pens are a helpful way to separate out CZ from diamond. But that should be the beginning and end of their use. Why? Because other gems also have high conductivity (such as moissanite) and because the testers themselves notoriously malfunction. Reasons I have seen these testers fail include user error (stones will not test correctly if the point touches metal), low battery, or age/abuse of the pen.

What makes a good diamond tester?
There are many things to consider when buying a diamond tester.

To distinguish a diamond from moissanite, first make sure the device has electrical conductivity. For greater accuracy, the most recent models on the market combine heat/electricity tests.

Another good feature is having a metal detector that signals if you accidentally touch part of the metal setting instead of the stone.

Your tester may not recognize metal and it could indicate that you are holding a genuine diamond when you accidentally touch the setting.

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