HOT VS. COLD LASER
Posted in DCLA News, on 17 April 2015, by Michael Cohen

Picture of Hot laser damage. purity is no longer VVS2

Picture of fake GIA laser done with Hot laser in Australia.

Laser inscription is the use of a very fine, precise laser beam to write a grading report number or customised personal message on the girdle (outside perimeter) of a diamond. The 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 DCLA uses the latest cold laser technology that allows excellent control during inscription without damaging the diamond (unlike a hot laser).

Laser inscription will ensure that the diamond set in the ring is the same as the one described in the grading report. At a later stage if you decide to remake or polish your ring the inscription will ensure that your diamond has not been swapped.

HOT VS. COLD LASER SYSTEMS

Note: All the recognised laboratories use Cold Laser systems. These laboratories include GIA, HRD, IGI, AGS and DCLA.