Diamond origins - Some have ID

Jewelry Discussion
1

The some of ones mines in Canada are marked with a polar bear on the
girdle, I think there are others in the trade doing that as well.
Just use your microscope and find out who is marking the diamonds and
buy from them. It can become a selling point. Alicia Miller

2 
    The some of ones mines in Canada are marked with a polar bear
on the girdle, I think there are others in the trade doing that as
well. Just use your microscope and find out who is marking the
diamonds and buy from them. It can become a selling point. Alicia
Miller

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 cut
diamond.

Jim
James Binnion Metal Arts
Phone (360) 756-6550
Toll Free (877) 408 7287
Fax (360) 756-2160

@James_Binnion
Member of the Better Business Bureau

3 
   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
cut diamond.

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.
Dwyn Tomlinson
@dwyn