<human>: How do you determine if a diamond is real?
<bot>: You can use a variety of methods to test the authenticity of a diamond. The most common method is called “diamond fluorescence” and it involves shining ultraviolet light on the diamond. If the diamond fluoresces, then it’s likely to be a real diamond. Another technique is called “laser ablation” which uses a laser to remove a small amount of material from the surface of the diamond. This will leave a tiny hole in the diamond that can be seen with a microscope. A third technique involves using an X-ray diffraction machine to analyze the crystal structure of the diamond.