The term diamond shape refers to the geometric outline and overall physical form of a diamond. Every diamond shape has its own distinct characteristics, cut specifications, and overall aesthetic. While the terms are often used interchangeably, it is important to note that diamond shape is different from diamond cut. Cut dictates the stone's light return and facets, while shape defines its actual form. Our diamond shape guide will help you understand the nuances of each to find your perfect match.
Use our diamond shape chart to guide your search. It visually presents the most popular diamond shapes, from the classic round brilliant to fancy shapes like the elongated pear, oval, and marquise cuts.
Round diamonds are the most popular and traditional diamond shape for engagement rings. They are cut to maximize brilliance and fire, making them incredibly sparkly. With 58 facets, the round brilliant cut reflects light beautifully. This versatile shape looks stunning in a variety of settings, from classic solitaires to elaborate halos.
Characterized by its square shape and pointed corners, the princess cut is a favorite for those seeking a modern yet brilliant stone. It offers exceptional sparkle, rivaling the round brilliant. When setting a princess cut diamond, it is crucial to protect the corners with prongs, making a V-prong or bezel setting ideal to prevent chipping.
Emerald cut diamonds are known for their step-cut facets, which create a captivating "hall of mirrors" effect rather than traditional sparkle. This elegant shape highlights the diamond's clarity, making a higher clarity grade essential. Its elongated rectangular form can also make the wearer's fingers appear longer and more slender.
The cushion cut combines a square or rectangular shape with rounded corners, resembling a pillow. This antique-style cut offers a romantic and vintage appeal. It possesses excellent fire, scattering light into a spectrum of colors, making it a beautiful choice for a timeless setting.
Oval diamonds feature a brilliant facet arrangement similar to round diamonds, providing impressive sparkle. The elongated shape flatters the hand and creates the illusion of a larger carat size. It is important to watch out for the "bow-tie effect," a dark shadow in the center, ensuring the cut minimizes this characteristic.
The pear shape, also known as a teardrop, is a unique combination of a round and marquise cut. It features a single point and a rounded end. Like the oval, it elongates the finger. Symmetry is vital for this shape, and the delicate point should be protected by a V-prong in the setting to ensure durability.
The ultimate symbol of love, the heart-shaped diamond is a distinctive and romantic choice. Crafting this shape requires incredible skill to achieve perfect symmetry. It is best suited for larger carat weights, as the heart outline can be less noticeable in smaller stones.
While often used interchangeably, shape and cut are distinct. Shape is the geometrical outline of the diamond (round, oval, square). Cut refers to how the diamond's facets interact with light. The cut dictates the proportion, symmetry, and polish of the stone, ultimately determining its brilliance.
A diamond's shape plays a significant role in its light performance. Shapes with brilliant facet arrangements, like the round, princess, oval, and radiant cuts, are designed to maximize sparkle and fire. Step-cut diamonds, such as the emerald and Asscher, have fewer facets and emphasize clarity and long flashes of light over intense sparkle.
The round brilliant cut is the undisputed champion of sparkle. It was mathematically engineered to offer the maximum amount of light return. If ultimate brilliance and fire are your primary goals, the round brilliant is the perfect choice.
When comparing diamonds of the exact same carat weight, elongated shapes will appear larger on the finger. The oval, pear, marquise, and emerald cuts have larger surface areas (table sizes) relative to their weight compared to deep-cut shapes like the round or cushion, offering a larger visual footprint.