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Artificial Color Changes in Diamonds and their Method of Identification

Introduction

The chapter on artificially colored, irradiated diamond is very complex and,
it were to be dealt with thoroughly and fully, would extend into gemological and scientific areas which go beyond the limits of this practical handbook. Hence only the most important methods of treatment of commercial importance are mentioned here, while the means of identification are shown with the aids available to a diamond specialist. In case of doubt, therefore, it is advisable to send a colored diamond to a professional diamond testing centre or a gemological laboratory operating on a scientific basis, so that its natural or artificial color can be determined.

Diamond Photometer Irradiated diamonds
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