There’s a handful of ways to test if a diamond is real or not, but many of these are unreliable, one of the safest and most precise of these methods is through the use of a diamond tester. These testers include a fine, needle-like tip, which is placed on the stone, and if the stone is real the tester will indicate it with a light or sound. Diamond testers work by testing the heat the stone is producing, this is due to the fact that heat travels differently through a diamond, than it would through glass or cubic zirconia; there are also some testers which work on the same principle, but instead of testing heat they test the amount of electricity traveling through the stone, which is also more precise than the former. It’s important for both sellers and buyers to know the authenticity of the diamond.
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