Diamonds Defined: Cut
Diamonds Defined is an ongoing educational series providing you with all the knowledge needed to help with your diamond purchase. We offer the finest selection of sustainably created diamonds direct from our own foundry.
Considered the most important of the 4Cs, the cut is a reference to the arrangement of a diamond’s facets. Often mistaken for shape, it is the way the diamond’s surface interacts with and catches the light. A delicate balance of proportion, symmetry and polish, this “C” is what delivers a diamond’s much-desired brilliance and is the only marker dealing in human touch and craftsmanship. Masterfully cut by our own foundry, our sustainably created diamonds are cut to perfect proportions to reveal a superior, striking sparkle ranging from Ideal to Excellent.
The Importance of Diamond Cut
More than color or clarity, it’s the cut that can have the most significant impact on a diamond’s overall beauty and value. An ideal cut invites in maximum light for breathtaking brilliance, fire and scintillation. It can be the difference between a lower color grade diamond appearing more expensive or a near flawless diamond appearing dull. Our cutting and polishing studios are full of true artisans and all our sustainably created diamonds are inspected more than 1,300 times from when the diamond seed is placed into a reactor to the finished ring. Fewer than 1% of all diamonds on the market meet this high standard of quality.
Light Terminology to Know
- Brilliance: The total light reflected from a diamond
- Fire: The dispersion of light into the colors of the spectrum
Scintillation: The flashes of light, or sparkle when a diamond is moved
Determining Diamond Cut Quality
A number of measurements and their proportions contribute to a diamond’s cut quality. The depth, culet, table and girdle of diamonds with a higher cut quality will be more perfectly proportioned, symmetrical and polished. When a diamond’s proportions are cut to exacting precisions, light enters and exits the diamond through the same surface, the table. In diamonds cut with proportions too shallow or deep, light escapes through the bottom or sides of the diamond, resulting in less reflection and a duller appearance.
Proportions Terminology to Know
- Table: The flat, top surface of the diamond
- Culet: Pronounced cue-let, this is the small point at the bottom of the diamond pavilion where the facets meet
- Depth: This refers to the distance between the “table” (top of the diamond) and culet (the point of the diamond), or how “tall” your diamond is
- Girdle: The outermost edge, where the top meets the bottom
- Precision of Cut: How the size and angles relate to the different parts of the stone
- Symmetry: How precisely the various facets of a diamond align and intersect
- Polish: The details and placement of the facet shapes as well as the outside finish of the diamond
Naturally, the exacting precisions and craftsmanship of higher cut quality garner a higher price, but because cut offers the greatest value, we recommend investing in the highest cut quality one can afford.
Demystifying the Diamond Cut
Cut to maximize brilliance. Perfect proportions. Rare quality held by <1% of all diamonds.
Perfect premium cut. Proportioned to return the maximum brilliance possible.
Diamond Cut Styles
Most diamonds are crafted using one of three cuts: brilliant cut, step cut or mixed cut. As the shape of a diamond will also impact the cut’s brilliance, we recommend keeping the shape in mind when considering the cut.
The brilliant cut is composed of triangular and kite-shaped facets spreading outward from the diamond’s center. It is most commonly paired with round shapes, but is also used in more unique cushion marquise, oval, pear and trillion shapes.
The step cut is composed of rectangular facets ascending in size outward and descending in size down the diamond. It is most commonly paired with emerald and baguette shapes.
The mixed cut is composed of both types of facets and can encompass princess, cushion and radiant diamonds.