The 4 Cs: An In-Depth Look at Cuts

The 4 Cs: An In-Depth Look at Cuts

If you’ve ever considered a major diamond purchase, you’ve likely heard of the 4 Cs of diamond buying: Carat (weight), Color, Clarity, and Cut. It may seem overwhelming to sort through the various factors that determine a diamond’s overall worth, but it doesn’t need to be complicated. We can simplify things by taking a more in-depth look at cuts, arguably the most important of all the Cs of diamond grading.

An In-Depth Look at Cuts

By now, the 4 Cs are practically synonymous with diamond buying, but it wasn’t always that way. In fact, it wasn’t until the mid-twentieth century that the gold standard of diamond grading was introduced.

The Gemology Institute of America (GIA) first introduced the 4 Cs in the early 1940s when founder Robert M. Shipley came up with the universal language for diamond grading. Prior to this, it was increasingly difficult for jewelers and buyers to consistently grade and determine the overall worth of any diamond purchase.

The Purpose of the Cut

Once the standard for diamond grading had been established, it was only a matter of time before it caught on and people became much more educated on their diamond purchases. It was during this time that the cut became one of the most prominent aspects of the 4 Cs and consumers began to understand that it meant much more than simply the shape of the diamond.

“Diamonds are renowned for their ability to transmit light and sparkle so intensely. We often think of a diamond’s cut as the shape (round, heart, oval, marquise, pear), but a diamond’s cut grade is really about how well a diamond’s facets interact with light,” explains

The Importance of the Cut

While there are many different factors involved in a diamond’s overall worth (color, clarity, carat), how a diamond is fashioned during the cutting process will usually have the greatest impact on its value. Why? Since the cut is directly related to how the diamond will present to the eye, the cutting process has the ability to make or break diamonds of any grade.

Diamond cuts are used to enhance the way the lighting reflects in its many surfaces. It is this interaction that gives each diamond its trademark coveted effects of fire (adding color through light), brightness (how much light is reflected), and scintillation (the relation of light and dark areas that make a diamond appear to sparkle).

The Best Cuts

Many would argue that the best diamond cut is one that is the most appealing to the wearer – and that’s not necessarily incorrect – however, it’s much more than aesthetics. As mentioned earlier, since the cut of a diamond is what will give it the greatest character fire and sparkle, it’s important to know which cuts will maximize these results.

Each cut has its own set of pros and cons. The marquis cut is known for an elegant and elongated look, while oval cuts can give the appearance of having a diamond larger than others of the same weight. When it comes to the industry standard, however, there is only one diamond cut that consistently offers the highest ratings for brilliance and fire: the brilliant round cut.

The Brilliant Round

Perfected by Marcel Tolkowsky, a mathematician and gemologist, in 1919, the brilliant round cut has quickly become the highest graded diamond cut of all available cuts. By using precision equations and cuts, Tolkowsky created the 58-facet diamond cut that consistently produces the greatest scintillation of any diamond available.

Other cuts can produce results that are similar to the round (princess cut, or square diamonds, are the next closest), but no other diamonds in the world are graded higher than those using Tolkowsky’s method. If you find yourself on the fence on a diamond cut, the brilliant round is always a safe bet for getting the highest quality cut available.