Laser inscription is the use of a very fine, precise laser beam to write a diamond certificate (diamond grading report) number or customised personal message on the girdle (outside perimeter) of a diamond. The diamond’s laser inscription is totally invisible to the naked eye and can only be seen with a magnifying loupe. It does not change the colour or clarity grade of a diamond and is considered permanent as it can only be removed by a professional diamond cutter.
The Diamond Certification Laboratory of Australia (DCLA)
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