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The Complete Guide to Trillion-Cut Diamonds

By:  Tasha Brooks

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Trillion cut diamonds

In a world of round, princess, and oval-cut diamonds, the trillion-cut diamond offers something refreshingly different. If you’re someone who enjoys expressing your individuality—whether through fashion, lifestyle or the jewelry you wear—the trillion diamond might just capture your imagination. With its striking triangular form and captivating sparkle, this cut brings a fun twist to any piece of jewelry.

Whether you’re exploring trillion diamonds for an engagement ring or seeking a stunning accessory to elevate your everyday look, this guide will help you see why the trillion diamond cut could be the defining piece your collection has been waiting for.

What is a Trillion-Cut Diamond?

A trillion diamond cut, sometimes referred to as a trilliant diamond cut, features a three-sided, triangular shape with slightly curved edges. Each side is typically of equal length, creating a balanced and symmetrical design. The trillion-cut diamond is known for its stunning brilliance due to its numerous facets that allow it to reflect light in a dazzling way, much like a round-cut diamond.

History of Trillion-Cut Diamonds

The trillion diamond cut first emerged in the 1960s, designed by the Asscher brothers from the Netherlands. They aimed to create a diamond shape that would maximize brilliance while offering a completely different silhouette compared to traditional cuts like the round or the emerald-cut diamond. Initially, trillion diamonds were often used as accent stones, but their unique charm quickly led to their prominence as center stones in unique engagement rings and other bespoke jewelry pieces.

Pros and Cons of Trillion Diamonds

Pros:

Distinctive Shape: The soft, curved edges of the trillion diamond cut adds a touch of elegance to any piece. It’s perfect if you’re seeking something truly unique.

High Brilliance: The many facets of a trillion-cut diamond give it a sparkle that’s comparable to round-cut diamonds.

Versatility: Whether used as a center stone or a side stone, the trillion diamond works beautifully in both modern and vintage-inspired designs.

Cons:

Limited Options: Compared to more popular cuts like the princess-cut diamond or marquise-cut diamond, the trillion cut is less common. You might find fewer design options with this diamond cut.

Setting Challenges: The curved edges of a trillion-cut diamond may limit your flexibility in choosing a setting style. A bezel setting, though secure, may hide the stone’s curves, while a prong setting would require extra care to secure the edges without affecting the look.

How to Choose a Trillion-Cut Diamond

When it comes to selecting trillion diamonds, a little guidance can go a long way. To help you find the diamond that’s just right, here are some things to consider before you make your choice:

Symmetry: A well-cut trillion diamond should have perfect symmetry. This ensures balanced light reflection and an aesthetically pleasing appearance.

Clarity and Color: Due to its large, open facets, inclusions or color tints can be more visible in a trillion diamond than in a more faceted cut like the princess-cut diamond. It’s best to opt for a higher clarity and color grade.

Best Settings for Trillion-Cut Diamonds

The right setting can make all the difference when it comes to your trillion-cut diamond. It’s not just about keeping the stone safe, but also about showcasing its striking shape in the best possible light. Here are some trillion-cut diamond settings that do just that:

Bezel Setting: The bezel setting is one of the most secure options for trillion diamonds. The metal rim fully encases the edges of the diamond, providing protection while showcasing its triangular brilliance.

Halo Setting: A halo setting enhances the diamond’s size and sparkle by surrounding it with smaller stones. This setting also helps create a more rounded and glamorous look.

Prong Setting: This setting secures the trillion-cut diamond with small metal prongs, holding the diamond in place while allowing maximum light to enter and enhance its brilliance.

Be it natural or lab-created diamonds, the trillion cut is a must-have for its appealing shape and exceptional brilliance.

FAQs

1. How is the trillion-cut diamond different from other diamond cuts?

The trillion cut is a triangular-shaped diamond with three equal sides and curved edges. Its large, open facets give it a brilliant sparkle, making it stand out from traditional round or square cuts.

2. Is the trillion cut suitable for engagement rings?

Yes, the trillion cut is bold and modern, perfect for someone seeking a unique engagement ring that stands out.

3. What metal options are suitable for a trillion-cut diamond setting?

Metals like platinum, white gold and yellow gold work well for trillion-cut diamonds. Platinum is often preferred for its durability. It protects the diamond and enhances its brilliance.

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