One problem with this idea. Anyone with access to a laser
marking system can inscribe whatever they want on the girdle and
there is not any way to tell if it originally came from Canada or
Africa or wherever. This is why the diamond industry is struggling
so hard with this. The folks who mine and sell diamonds would love
to be able to mark their stones to differentiate from the conflict
diamonds but there is no definitive test to tell the origin of a
And this has happened already – according to the President of the
Canadian Gemmological Association in a lecture presented at the
Scarborough Gem & Mineral Club about 2 months ago.
The certificate of orgin helps.
But check the color also. Canadian diamonds are colorless – all of
them have been absolutely colorless.
The tip-off for the one that came across his desk was that it had a
pink hue – calls to all the producers confirmed that there were no
pink Canadian diamonds.
Apparently, there was some “cut in Canada” vs “mined and cut in
Canada” caveat emptor going on.
Just repeating his comments from the lecture.