Spectrometer

Spectroscopes
allows you to analyze a loose or mounted stone & spectrum. They
help distinguish naturally colored diamonds from those that have been
irradiated and help to distinguish natural stones from synthetics by the
stone & selective absorption of certain wavelengths.

A
handheld spectroscope for visible light shows the absorption lines of
the elements involved in producing its color. For instance, it helps to
separate ruby (chrome) against red or pink sapphire (iron). Spectroscope
breaks up the light that is being transmitted from a gemstone to its
spectral colors. The process allows the gemologist to see the various
wavelengths absorbed by the gemstone. Thereby allowing the gemologist to
know what elements are contained in the gemstone that are causing the
absorption. Making this as one of the most important tools in
identifying gemstones.