When you hear something referred to as “the Cadillac®” of its kind, it often refers to something classy and good. Synonymous with luxury, prestige and superior craftsmanship, the Cadillac metaphor began in the mid-1900s when the Cadillac vehicle represented the best-in-class in the automotive industry (well, at least according to the Chairman of General Motors at the time!). The Cadillac cut diamond carries the same sense of refinement and distinction. The Cadillac cut is sleek, geometric and elegant, perfect for those who appreciate symmetry and sophistication in their jewelry.
So, if you’re ready to learn exactly what a Cadillac cut diamond is, how Cadillac cut stones are typically used and why the Cadillac diamond might be the finishing touch your jewelry piece is begging for, let’s get started.
What is a Cadillac cut diamond?
A Cadillac cut diamond is a five-sided diamond shape featuring one long straight base, two tapered sides and two additional angled sides that meet in a sharp point. This step-cut diamond (with long, linear “step” facets rather than the triangular facets seen in brilliant cuts) produces a sleek, mirror-like sparkle instead of a fiery shimmer.
Step cuts emphasize the clarity and symmetry of the cut, two key considerations in the 4Cs of diamond grading. Some diamonds lend themselves better to these precise, angular cuts based on their internal structure and the way diamonds naturally form, which influences how light travels through each stone.
Why is it called a Cadillac cut diamond?
The Cadillac cut diamond got its name because its five-sided shape resembles the shield-like crest in the Cadillac logo. Despite the nod to the luxury car brand, there’s no formal connection between the two (the automaker isn’t licensing the shape, and no dealerships see a cut of your diamond purchase!). The term is simply shorthand among jewelers for this crisp, architectural cut that conveys prestige and elegance.
How are Cadillac diamonds typically used?
While Cadillac cut diamonds (or “Cadillac side stones”) can stand alone or serve as dramatic center stones, they are often used as an accent gem, adding architectural pizzazz and a quiet, distinctive finish. The defined edges and tapered sides of Cadillac cut diamonds make them great sidekicks to elongated center stones, adding crisp geometry to the outer edges of a ring’s setting.
You’ll often see Cadillac cut diamonds used in three-stone rings, where a Cadillac cut diamond on each side frames one larger center diamond. The angled shape of the Cadillac cut diamonds guides the eye from the center stone down the band, making the whole ring look balanced and symmetrical.
Beyond rings, Cadillac cut diamonds can bring structure and a pop of poise to necklaces, bracelets and earrings. While not considered a classic cut, you’ll typically find Cadillac cut diamonds in high-end settings, often used by boutique jewelers.
Why choose to add Cadillac cut diamonds to a piece?
Choosing to include Cadillac cut diamonds into your jewelry design adds structure, style and extra sparkle. Their crisp, angular shape adds a modern, architectural component, whether they’re flanking a center stone or set in a sleek line on a ring.
Trying to emphasize your ring’s main stone? Cadillac cut diamonds do so, as their naturally tapered sides draw the eye toward the central stone, emphasizing its size and brilliance. Cadillac cut diamonds also reflect light in a unique, mirrored way that adds depth to jewelry.
For anyone designing a custom engagement ring, pendant or even cufflinks, Cadillac cuts are a subtle way to balance and refine a piece.
Similar alternatives to Cadillac cut diamonds
If you have your eye on Cadillac cut diamonds, there’s a good chance you’ll also appreciate other angular, step-cut or geometric shapes that offer a similar sleek, architectural look.
Baguette side stones
Baguette side stones are an elegant and timeless option, known for their clean lines and step-cut facets. Their minimalism has long made them a favorite in vintage and Art Deco–inspired settings.
Trapezoid side stones
Trapezoid side stones are another sophisticated option for those drawn to the sharp angles of Cadillac cuts. Their tapered shape naturally complements rectangular or square center stones, playing up symmetry and proportion.
Trilliant cut side stones
For a more dramatic sparkle, trilliant cut side stones offer intense fire and brilliance. They add a contemporary contrast to softer center stone shapes.
Bullet side stones
Bullet side stones are recognizable for their elongated, shield-like shape and step-cut facets that create crisp flashes of light. They pair especially well with emerald or Asscher cuts, emphasizing clean lines and symmetry.
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