WebSep 7, 2024 · Ultraviolet light (UV) is the most commonly used excitation source. We cannot see UV light as it sits just below the visible light spectrum (400nm- 700nm) at 10-400nm. UV light enables us to see fluorescence because a gem material will absorb this radiation source and then emit light that is lower in energy and therefore visible to the eye. WebGemetrix Jewelry Inspector allows the observation of fluorescence and phosphorescence from SW (short wave) and LW (long-wave) ultra-violet illumination. These observations help a gemologist to find whether a diamond or gem is Sythetic, Natural or Treated. The colour and intensity of the fluorescence gives us a clear picture or indication about a diamond or …
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