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  : : Gemstone Treatments
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Intro Treatments

Many gemstones are treated with various methods to improve color and clarity. Some of these methods are widely accepted in the trade today, while other methods are not. The accepted trade methods are the ones that will change the color of the gemstone permanently.

All ethical gem dealers will fully disclose gem treatments. But in our view it is also important to provide detailed information to the buyer so that he knows exactly what he is buying. So we have added information below that will help educate you about the common treatments, as well as some recent innovations. Keep in mind that most colored gemstones are treated, and this is a perfectly legitimate practice as long as all facts are disclosed to the buyer. If you know the facts, then you can feel safe about buying a gemstone that you will enjoy for many years to come.


Heat treatment
Beryllium treatment
Diffusion treatment
Fracture filled treatment
Irradiation treatment
  • First Published: April-04-2006
  • Last Updated: October-06-2010
  • © 2005-2014 GemSelect.com all rights reserved.
    Reproduction (text or graphics) without the express written consent of GemSelect.com (SETT Company Ltd.) is strictly prohibited.
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