7 Diamonds Diamond Tester Pen

To identify and grade diamonds, whether as a professional or hobbyist, you'll need tweezers, a loupe, a microscope, and the right lighting. Two other very important pieces of equipment you'll need are a spectroscope and a refractometer. You can learn about other gemology tools here.

Diamonds conduct electricity better than other stones, including the difficult synthetic moissanite. An electricity tester will provide a clear sign as to whether or not the stone is real or created by a lab. A diamond will show conductivity while other stones like moissanite and cubic zirconia will not.