What Shape is a Diamond?

Every diamond starts its story as a simple, unpolished stone. It's the art and skill of the craftsman that transforms this raw material into a radiant jewel, each with its own personality and charm. How a diamond is shaped and cut not only determines its brilliance but also its character. At Cullen, we pride ourselves on offering a diverse collection of diamond shapes, each with its unique allure. Whether you're drawn to timeless classics like round diamonds or modern cuts like oval diamonds, our selection ensures there's something special for everyone's taste. Dive in and discover the perfect shape that speaks to you.

The epitome of classic elegance, the Round Brilliant diamond cut stands out with its 58 meticulously crafted facets. Designed for maximum light reflection, this cut ensures unmatched sparkle, while also being forgiving of minor imperfections.

As a modern twist to the traditional Round Brilliant, the Oval cut is surging in popularity for engagement rings. It not only offers a distinct appeal but also flatteringly elongates the ring finger. This cut masterfully balances between uniqueness and brilliant sparkle.

Reflecting precision and pristine clarity, the Emerald cut is reminiscent of peering into unblemished waters. Although originally crafted for emeralds, this step-cut diamond might not be the most brilliant, but it exudes purity. A word of caution: its transparent nature can amplify imperfections.

A close contender to the Round cut in terms of brilliance, the Radiant cut seamlessly fuses the characteristics of both Round and Emerald cuts. Available in either square or rectangular forms, its slanted corners provide protection against chipping, making it both beautiful and durable.

Blending the luminescence of a round diamond with the distinctiveness of marquise, the Pear cut diamond is both fiery and sophisticated. Its teardrop silhouette offers a slenderising effect, suitable for diverse settings. Its varying length-to-width ratios allow for personalised customisation.

Fast becoming a favourite, the Cushion cut melds the square and round shapes, punctuated with rounded corners and 58 facets. Its pillow-esque form radiates symmetry and charm, especially when incorporated into engagement ring designs.

As the moniker suggests, this is an extended take on the classic Cushion cut, maintaining its characteristic charm but with a stretched allure.

A harmonious blend of geometry and elegance, the Elongated Hexagon cut offers a contemporary spin on traditional diamond shapes. Stretching the classic hexagonal silhouette, this cut introduces a refined elongation that captures light uniquely.

Boasting a boat-shaped brilliance, the Marquise cut employs a technique akin to the Round, ensuring optimum sparkle and retention of carat weight. This stretched form effectively minimises inclusions but can make certain imperfections more discernible than in the conventional Round cut.

Exuding regal charm, the Princess cut is a square marvel with 58 facets, offering a sparkle that rivals the Round cut. Its sharp corners are both stylish and statement-making.

Often dubbed the “Square Emerald,” the Asscher cut boasts step-cut facets and cropped corners. Its crystal-clear appearance necessitates a high-quality selection, as flaws can be more evident.

Symbolising romance and passion, the Heart-shaped diamond requires immaculate symmetry. Both its halves must mirror each other perfectly. It's crucial to note that smaller Heart diamonds might appear diminutive once set, and hence, those below 0.50 carats might not be ideal. Settings like Bezel or three-prong are best suited for this shape.

From timeless rounds to modern hexagons, every diamond shape brings a distinct mood and sparkle. The right cut is the one that reflects your style, complements your hand, and feels unmistakably you—whether you love bold geometry or soft, romantic curves. Ready to find your perfect match? Explore our engagement ring collection and discover your shape below.