Diamond Cut

Diamond Cuts

Most people believe that the cut of a diamond is its shape. But this is incorrect. A diamond cut has nothing to do with whether it’s a marquise or a heart, but instead has everything to do with how the surrounding light interacts with its facets. One of a diamond’s best selling points is how it sparkles and flirtatiously twinkles away while nestled safely on your finger. While the quality and clarity of the diamond itself has a lot to do with that, the surrounding light that dances upon its facets has, even more, to do with it.

The Diamond Cut Scale

Diamond cuts are typically graded into 5 different categories. Let’s take a look at the diamond cut types:

Excellent

The best diamond-cut is the very best cut of a diamond that money can buy. Regardless of the shape or proportion, these diamonds will possess an even pattern of bright and dark areas.

Very Good

An excellent cut still grades high in terms of brightness, scintillation, and final polish but has a darker pavilion main. Exquisite diamonds will usually feature a splintered pattern which slightly limits the accessibility for light to travel through its facets. It is usually an ideal cut

Good 

Diamonds with a good cut tend to sparkle less than the diamond-cuts listed above. The angles of the diamond cause dark pavilion mains. Good diamonds typically feature a darker ring around the edges, meaning it won’t shine as much as diamonds with a better cut will.

Fair

A fair diamond cut is defined by its lack of contrast between light and dark & its overall darker appearance. While you can expect a fair amount of sparkle, diamonds in this cut range will not provide a lot of scintillation.

Poor 

Diamonds with an inadequate cut feature low fire, brightness, and scintillation meaning that while they’ll look beautiful on your person, they won’t react beautifully with the light. 

A lot of the time a low diamond-cut happens due to a heavier weight.

The diamond cut is a huge determining factor in its value and aesthetic appeal, which is why proper care needs to be taken when establishing the cut. Of all of the 4Cs, the cut is the most crucial. On top of this, it’s also incredibly challenging to do and requires complicated analysis.

To establish the diamond-cut grade of the shape that remains most popular within the world of diamonds, the brilliant round diamond, GIA determines the cut grade by evaluating how a diamond interacts with the surrounding light and how desirable the visual effects of the diamond are.

A Diamond’s cut is graded to assess:

1. Its brightness 

This refers to the white light reflected from a diamond, both internally and externally.

2. Its fire

Ever noticed when the sun hits your diamond just right, an assortment of colors will appear and reflect all over nearby surfaces? This phenomenon is known as ‘fire’ in the diamond industry.

3. Its scintillation

Scintillation, while you might not have heard of the term, is something all diamond owners will know well. It is the amount of sparkle produced by a diamond.

Also taken into account when determining the cut grades are the design of the diamond and its overall craftsmanship. This includes its relative weight, the durability of the girdle, the symmetry of the facets as well as the facets’ quality of the polish. Most jewelers grade the cut of their diamonds from ‘Excellent’ down to ‘Poor’, so be sure to specifically inquire about a diamond-cut before you choose it to become your new best friend.

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