The Four C's: Diamond Cut

In the third part of our ongoing The Four C's series, we are going to investigate one of the most important, but least thought about, dimensions of diamond grading.  What most people don't even think about is the fact that every single facet affects the overall value of your new diamond, and one mistake could lead to a difference of hundreds to thousands of dollars.  Perfect cut diamonds typically take the top spot on every jewelry shop shelf, but what "perfect" really means in this case can be just as much up to opinion as it is up to mathematics.  First and foremost, in order to distinguish what perfect means, we have to find out what cut shape we are looking for.

Some of the more popular diamond cuts are as follows: Princess Cut, Heart Cut, Marquise Cut, Pear Cut, Emerald Cut, and, the most popular, the Round Cut.  Of all of these cuts on the market, there is an even more important differentiation to make: which mode of these cuts you are actually purchasing.  In fact, no one will advertise that they sell Simple Round Cut diamonds, as they are made by the batch and the facets number less than half of what you'll find on a Brilliant Round diamond.  Furthermore, Princess cut diamonds are not always Brilliant Princess cut, as it takes more work, and thus more money, to perfect more and more facets on the table (or the view from the top when set)  of the diamond.  How can you tell the difference between these near-forgery stones and real Brilliant diamonds?

The fire is completely different, as Brilliant cuts will outshine any other cut objectively.  Put through a battery of tests at major laboratories like GIA, EGL, or GGS, a diamond will show all of it's true colors.  A real Brilliant Round Cut diamond will have a total of fifty eight facets all around, where Simple Round cut diamonds can have as low as fifteen facets.  The shape always resembles that of a cone, which each of the facets directing light through the table of the diamond.  With thirty-three facets just on the top of the diamond itself, light itself is even confused as it tries to make it's way to freedom in your eyes.

Now, we get to the interesting part: the proportions which provide the best light dynamics are still not agreed upon by these major laboratories.  Although they are within a few degrees of one another, it makes all the difference when counting through microscopes.  So, no matter where you go to get your "perfect" diamond, remember that there is another part of the world where that diamond is just "excellent".

When a diamond is cut perfectly and put through a machine, you can see the light go in through the top, hit the bottom and bounce off twice, and then shine even brighter back right through the top again.