The detection of colour-enhanced and synthetic gem diamonds by optical spectroscopy
نویسنده
چکیده
In this article, the spectroscopic methods used to assess gem-quality diamonds are reviewed. From such measurements it is possible to determine, in the majority of cases, whether the colour of a stone is natural, or has been changed by some form of treatment—either HPHT processing, radiation damage and annealing, or a combination of both methods. Methods used to identify synthetic diamonds are also covered briefly. 2003 Elsevier B.V. All rights reserved.
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