Would diamond to be electrically conductive?

Answer 1

One way to determine whether or not a diamond is a real diamond is to use an electric probe, because a diamond will respond to electricity differently than will a fake stone.

However, diamonds are not a practical conductor of electricity: they are too expensive.

Answer 2

Diamonds are known to be electrical insulators due to their strong covalent bonding. However, through a process called doping, diamonds can be made electrically conductive by introducing impurities that alter the material's electronic properties. This can be utilized in applications such as semiconductors or electronic devices.