Cut is the most important of the 4 Cs. It determines how brilliantly a diamond interacts with light—and ultimately, how breathtaking it looks.
A diamond's cut refers not to its shape, but to how well it has been fashioned from the rough stone. A perfectly cut diamond allows light to enter, bounce between its facets, and exit in a brilliant display of fire and scintillation. Even a flawless diamond can look dull if cut poorly — and a well-cut diamond of modest clarity can be absolutely radiant.
Three optical properties define a diamond's dazzle
The white light reflected from the interior and surface of a diamond. A perfectly cut diamond returns maximum light back to the viewer's eye.
The dispersion of white light into spectral colors. A well-cut diamond scatters rainbow flashes of color, especially in candlelight settings.
The sparkle and play of light as the diamond, viewer, or light source moves. This is the "wow" factor — flashes of contrast and sparkle.
Click any cut to learn more about its unique characteristics
The classic choice. Engineered for maximum brilliance and light return across all viewing angles.
A modern square cut with brilliant-style faceting. Combines contemporary style with exceptional sparkle.
An elegant elongated shape that flatters the finger and creates a beautiful finger-lengthening illusion.
A romantic square-to-rectangular shape with rounded corners and large facets that enhance clarity of light.
A sophisticated rectangular step-cut with long, open facets that create a hall-of-mirrors effect.
A unique teardrop silhouette combining the brilliance of round with an elongating pointed tip.
A football-shaped cut with pointed ends that maximizes carat weight and creates a dramatic elongating effect.
The most brilliant of all rectangular cuts. Trimmed corners make it durable and versatile in any setting.
Cut is the most critical C — it directly influences how the other three Cs appear to the eye
The most important of the 4 Cs. A poor cut will make even the highest-grade diamond appear dull. We recommend Excellent or Ideal grade for maximum beauty.
Graded D (colorless) to Z (light yellow). The cut affects how color is perceived — a well-cut diamond can make a G-H stone appear near colorless to the naked eye.
Refers to internal inclusions and external blemishes. A superb cut can minimize the visibility of inclusions through light performance and brilliance.
Weight of the diamond. Cut proportions affect how large a diamond appears — a well-cut 1ct can look larger than a poorly cut 1.2ct stone.
How popular diamond cuts compare across key characteristics
| Shape | Brilliance | Fire | Finger Coverage | Best For | Price Tier |
|---|---|---|---|---|---|
| Round Brilliant | Highest | Highest | Moderate | All styles | Premium |
| Princess | Very High | High | Moderate | Modern / Solitaire | Mid |
| Oval | Very High | Medium | High | Elongated elegance | Mid |
| Cushion | High | Very High | Moderate | Vintage / Romantic | Mid |
| Emerald | Lower | Lower | High | Art Deco / Classic | Lower |
| Pear | High | Medium | Very High | Unique / Dramatic | Mid |
| Marquise | High | Medium | Highest | Bold / Statement | Lower |
| Radiant | Very High | High | High | Versatile / Modern | Mid |
Our gemologists at Brilliancegemstudio are here to help you find the diamond cut that perfectly matches your style and story.
