Cut:
The degree of accuracy to which a gem is cut can have a huge impact as to the gems's value. That is the gem must be cut to specific
angles and dimensions as dictated by the refractive index (how the gems species/variety reflects light) of the material being cut. If the
angles are cut correctly, the gem will be brilliant (provided clarity & color are also good).
You can have beautiful color and exceptional clarity but if the proportions of the gem are not correct you may wind up with a stone that is
lifeless. I'm sure that you have seen stones that look to be quite large but appear, well, plain or dull. These were deliberately cut to
"face up" as large gems. You see if the pavilion (bottom half of a gem) is too deep OR too shallow the resulting liveness or brilliance of
the stone will be greatly effected.
Also the proportion, outline, how the gem looks from the top or side, is referred to as symmetry. The gem should be pleasing from all
views. Girdle size (the portion of the stone which separates the pavilion from the crown or top) is important. Too thick a girdle is not
wanted and only serves to increase the weight of the stone.
Thus you need the proper color, clarity, & cut--in a carat size of your choice--to all be "right" if you are to have a really beautiful finished
gem.
At Gems by Gregory that is why we select and we cut only those rough gems that will meet our exacting standards.
All text and images Copyright 2007, GemsbyGregory.com
Gems by Gregory