What does it mean when the description says that a gem has a logo on it?
Many of our gems have a stylized JD logo (see image at right) on them just below the girdle. This mark sets a gem apart as one of our pieces and adds value by attesting to it's uniqueness and quality. The logo indicates the gem is one of ours without disrupting the face-up beauty of the gem. The logo, which is a registered trademark of ours, is the initials JD in the shape of a faceted gem's profile.
Below are pictures of the logo on some gems as seen from the side. The arrow points to where the logo is on the Blue Topaz, and the Citrine has a logo right in the middle of the gem below the girdle. Logos vary in size and exact location, depending on the size and facet pattern of the gem.
Why don't all of the gems have logos?
Our logo has a minimum size, and some gems with very small facets
just don't fit a logo on them in a good way. For these gems we can
offer a printable "Certificate of Authenticity" complete with a picture
of the gem if you or your client would like.
Another reason a gem may not have a logo is because in some
cuts there is no way to place a logo without it appearing in a
disagreeable way from the front of the gem.
Some large and extra special gems do not have logos because I
am considering entering them into a faceting competition. Because the
competitions are judged "blind," the judges are not supposed to know
who cut the gem and a logo would defeat this purpose.
In some cases (increasingly rare) we subcontracted out the cutting of the gem and so we did not put our logo on it. We almost never subcontract anymore because our cutting methods and capacity have continually improved, but in the past, subcontracting was necessary to keep up with the volume of gems we needed.
If you are interested in a gem without a logo and want to know why it doesn't have one feel free to ask us!