GIA recalls diamond grading reports
Posted in DCLA News, on 18 May 2015, by Michael Cohen

GIA claims colourless to near colourless diamonds submitted primarily to GIA laboratory in Israel are potentially treated, says the GIA’s alert.
GIA says the treatment may be a process that temporarily masks the inherent colour by as much as three grades and can lead to a higher grade. GIA have not identified the treatment process yet. At this time, GIA claims the diamonds treated in this way have been submitted by just a few clients.

NOTE: the above example is and example report only


GIA has terminated submissions from the clients who have submitted these diamonds to GIA and have notified the trade bodies.

Source: diamonds.net