Beyond the classic round brilliant and popular fancy shapes like oval and emerald, there exists a fascinating world of diamond shapes. Over time, cutters and designers have experimented with geometry, symmetry, and movement to create shapes that serve specific design purposes. These unique shapes—fan, whistle, bullet, briolette, trapezoid, and drop—offer distinctive aesthetics for those seeking truly uncommon jewelry designs. Each brings its own history, characteristics, and visual impact to fine jewelry.

Fan Diamonds

Similar in shape to a shield cut, a fan diamond has a flat top, triangular silhouette, and curved base that resembles the shape of an open fan. The facets are laid out in a radiating fan-like pattern, giving fan diamonds a vintage-inspired look that radiates a sense of movement and ornamental detail. The exact number of facets varies, and fan shaped diamonds don't necessarily align with the specifications of a standard brilliant or step cut diamond.

Fan diamonds have two flat edges and one convex curved edge, with a spread silhouette and tapered structure that makes them better suited to framing a focal diamond than serving as a primary centerpiece. They are usually cut as smaller stones for use as accent stones, are often sold in pairs, and must be precisely cut for perfectly matching symmetry.

How Fan Diamonds Are Used in Jewelry

In diamond rings, fan cut diamonds are most commonly used as side or accent stones. They are well-suited to three-stone settings, where they often flank an emerald, cushion, or radiant cut center stone to create a graceful, fan-like tapered look. Fan cuts are also used in diamond necklaces and earrings, where their spread, decorative shape enhances movement and visual impact.

Who Is the Fan Cut Perfect For?

Fan cuts are specialized accent stones that can be harder to source than more common side stone shapes, making them ideal for those who want a ring with a distinctive, seldom-seen aesthetic. Often associated with antique or custom-designed diamond jewelry, fan cut diamonds appeal to collectors of unusual vintage jewelry, those seeking Art Deco aesthetics, and anyone drawn to pieces that showcase creative diamond cutting rather than maximum brilliance.

Whistle Diamonds

The shape of a whistle diamond is generally an elongated, right-angled trapezoid—the outline can be likened to half of a pentagon, with two right-angled bottom corners, two parallel sides, and a sharper angle forming the topmost corner. Usually used as accent stones, whistle cuts have a geometric, architectural form that appeals to those who prefer angular, nontraditional designs. Facet patterns vary but typically feature step cuts that create mirror-like light reflection rather than the maximum sparkle of a brilliant cut.

Whistle cut diamonds have one of the sharpest points of any diamond cut, making the narrow upper tip vulnerable to breaking. As a result, they are often channel-set or surrounded by bezel settings to provide adequate protection.

How Whistle Cut Diamonds Are Used in Jewelry

Whistle cut diamonds are typically used as accent stones in directional or asymmetrical designs, where their taper enhances visual flow. They are most commonly seen as a supporting element in three-stone engagement rings, as accent diamonds in Art Deco-inspired designs, and in channel-set bands or eternity rings. The nontraditional outline also works well in pendant necklaces and earrings, and makes whistle cuts well suited to art-inspired bespoke and custom jewelry.

Who Is the Whistle Cut Perfect For?

Whistle cuts are angular and nontraditional, appealing to those who value individualism and prefer to avoid the most common diamond shapes. Their Art Deco or vintage-inspired aesthetic makes them perfect for rings with a distinctly vintage vibe and for buyers who gravitate toward custom, one-of-a-kind designs.

Bullet Cut Diamonds

Offering chic Art Deco charm, bullet diamonds are a glamorous choice that is often more popular in earrings than in rings. A bullet diamond is essentially a baguette-shaped stone with one end cut into an angled V shape, creating a silhouette reminiscent of an unshot bullet or an elongated, skyscraper-like form. Most bullet cuts feature step-cut faceting with long, parallel facets that produce a hall-of-mirrors effect, though precise facet patterns can vary.

The bullet cut's sharp point is a defining feature but also its most vulnerable area, and it is typically protected by bezel settings that encase the tip while preserving the stone's clean architectural presence.

How Bullet Cut Diamonds Are Used in Jewelry

Bullet-shaped diamonds are most often used as side or accent stones, where they help elongate the design and can make the center stone appear larger and more impactful. They are commonly paired with other step cuts, such as emerald or Asscher cuts, to maintain a cohesive geometric look. Because they are predominantly used in three- or five-stone settings, bullet cut diamonds are typically sold in matched pairs—look for excellent symmetry, clean lines, and color and clarity that closely match the center stone.

Who Is the Bullet Cut Perfect For?

Anyone drawn to the glitz and glamour of the Roaring Twenties should consider the bullet cut. The clean, geometric lines of this shape also appeal to jewelry wearers seeking a sophisticated alternative to traditional tapered baguettes—with a little more personality and drama.

Briolette Diamonds

Briolette diamonds are among the rarest and most distinctive diamond cuts, with a history dating back hundreds of years. Shaped like a teardrop or elongated pear and covered in triangular facets across the entire surface, the briolette has no table, culet, or flat face. Instead, it is fully faceted all around, allowing light to reflect from every angle and creating exceptional brilliance and sparkle.

Unlike traditional cuts designed for rings, briolette diamonds are typically created to dangle in drop earrings or pendants, where they shimmer freely as they catch the light. They are also among the most expensive cuts, as crafting one requires a large, exceptionally clean piece of rough diamond—every surface remains visible once finished, leaving no room to hide inclusions, symmetry issues, or cutting imperfections.

History of the Briolette Cut

The briolette cut is one of the oldest known diamond cuts, with records dating back to 12th-century India. Although the term "briolette" didn't come into common usage until the 1800s, the 17th-century French gem merchant Jean-Baptiste Tavernier described diamonds "cut with facets on all sides" during his travels in India—among the earliest documented references to this remarkable cut.

How Briolette Diamonds Are Used in Jewelry

Briolette cut diamonds are designed to dangle rather than be mounted in a traditional prong setting. Many briolettes feature a drilled hole at the narrow end for suspension, and they are most often associated with high jewelry—used to create elegant necklaces, drop earrings, and chandelier earrings where their 360-degree shimmer can be fully appreciated.

Who Is the Briolette Cut Perfect For?

Briolette diamonds appeal to collectors who value history, craftsmanship, and individuality over immediate visual impact. Lovers of antique jewelry and timeless elegance will appreciate the 360-degree shimmer of a briolette cut diamond. Most common in genuine vintage and antique pieces—including jewelry from the Victorian era—they are also favored by modern designers for their elegance and ability to create a fluid, mesmerizing display of light.

Trapezoid Diamonds

The trapezoid is a four-sided geometric cut with two parallel sides and two that slant inward—another way to think of it is as a triangle with its top point cut off. Trapezoid diamonds offer maximum finger coverage and can enhance the perceived size of center stones, which is why they are commonly used as side stones. This shape is extremely versatile and remains a distinctive choice for those who appreciate clean, angular lines and a sophisticated, nontraditional look.

The majority of trapezoid cut diamonds are created using step cuts similar to an emerald cut, producing a hall-of-mirrors effect. In some cases, trapezoid diamonds are also cut with brilliant-style triangular or kite-shaped facets, offering a choice between understated elegance and stronger brilliance.

How Trapezoid Cut Diamonds Are Used in Jewelry

Trapezoid diamonds are far more commonly used as accent stones than as center stones. They add width and definition when placed as side stones, most often in three-stone engagement rings where they create a clean, tapered transition toward the center. They also appear in five-stone rings with bullets or baguettes, in channel-set bands, and flanking colored diamonds or gemstones—making them especially well suited to Art Deco and vintage-inspired designs. Step-cut trapezoids pair naturally with emerald or Asscher cut center stones, while brilliant-cut trapezoids complement princess, cushion, or radiant centers. Jennifer Lopez's engagement ring from Ben Affleck featured two trapezoid-cut white diamonds flanking an over six-carat pink diamond center stone.

Who Is the Trapezoid Cut Perfect For?

Trapezoid cut diamonds are often chosen for their ability to add perceived size and weight to a center stone. They are ideal for those seeking substantial side stones with more presence than baguettes, sophisticated buyers who appreciate geometric elegance, and anyone wanting a side stone that creates a clean, tapered frame without extending awkwardly between the fingers.

Drop Cut Diamonds

With their teardrop-like silhouette, drop cut diamonds resemble both pear cut and briolette cut diamonds—and the terms are sometimes mistakenly used interchangeably. In reality, they are distinct shapes. A briolette is a specific type of drop cut featuring triangular facets that cover the entire surface of the stone. A pear cut, by contrast, is a traditional flat-faced cut with a defined table, girdle, and culet, making it better suited to engagement rings. Drop cut diamonds sit between these two, typically featuring an elongated teardrop shape, a balanced curve and pointed tip, and faceting across the surface that creates excellent sparkle and brilliance.

How Drop Cut Diamonds Are Used in Jewelry

Drop cut diamonds are best suited for use in pendant necklaces and earrings, much like briolette diamonds. Their rounded, elongated shape is designed to catch the light when in motion, creating a dazzling effect as the stone moves. Some drop cuts feature a flattened end in place of a briolette's sharp point, and many are drilled near the top for suspension in jewelry.

Who Is the Drop Cut Perfect For?

Drop cut diamonds appeal to wearers who value understated sophistication and a sense of quiet individuality in their jewelry choices. They are well suited to those who want jewelry that feels graceful, timeless, and elegant rather than bold or heavily structured—making them a beautiful choice for meaningful pendants and statement drop earrings alike.

FAQs

How do I choose the right diamond cut?

Choosing a diamond cut is a highly personal decision. Consider your personal aesthetic, finger shape, and setting preference. Viewing various shapes in person or comparing high-quality videos can help you understand how each cut reflects light and suits your overall style.

Are less common diamond cuts more expensive?

In many cases, nontraditional and uncommon cuts tend to be less expensive than round brilliant cuts. Prices depend on a wide range of factors, including market availability, demand, and the difficulty and waste involved in cutting any particular shape.

How are diamond cuts evaluated?

Expert gemologists from organizations like the GIA evaluate diamonds based on the 4Cs: cut, clarity, color, and carat. Specifics of diamond grading vary depending on the cut.

Are diamond cut and diamond shape the same?

No. Diamond cut refers to how a diamond's facets are proportioned and arranged, which affects its light performance. Diamond shape refers to the physical outline of the stone—such as round, oval, or emerald.

How do side stones affect the overall style of a ring?

Well-matched side stones can add refinement and sparkle, and some pairings can make the center stone appear larger. Side stones impact a ring's aesthetic and personality in significant ways, so choosing shapes that harmonize with the center stone is important.

How do I choose the right diamond cuts for side or accent stones?

Start by considering the shape and cut of your center stone. Round center stones pair well with pears or half moons, while square and rectangular center stones often look elegant with clean-lined side stones. Brilliant cut center stones typically match well with brilliant cut accents, and step cut center stones are nicely complemented by step cut side stones. The goal is balance and harmony in the overall design.