How to Choose a Trilliant Cut Diamond

trilliant cut diamond


One of the most exceptional, fancy diamond cuts offered out there is certainly the Trilliant cut. “Trilliant” is really a broad term that’s used to refer to cuts that are based on the shape of a triangle.

Typically, the diamond is cut to equivalent sides and is made up of 50 facets. Due to its unique form, it is usually preferred by those who are searching for a truly fashionable stone or want an alternate choice to the market that is oversaturated with round diamonds. 

In modern times, they are often used as side stones or accent stones in rings to complement a main stone instead of being a standalone. This versatile diamond cut has also found its use in making bracelets, solitaire rings and studs.

A Brief History And Overview of the Triangular Diamond Cut

Before talking about anything else, we should clarify that if you ever stumble upon the terms “trillion cut” or “trillian cut”, the information you find will actually be related to trilliant cuts. These are just simply “branded” trademarks or mistaken names for the original cut.

The trilliant cut was developed during and after World War II, but it was only patented in 1962 by the Henry Meyer Diamond Company. Once the patent has expired, the cut technique became freely usable to all diamond cutters around the globe.

The cut can be presented as transitions between different types of diamond shapes. The most common description usually states that it is a triangular radiant cut without the corners cut off. It has a number of variations depending on how the cutter decides to fashion the stone. In most cases it features 31 or 50 faces – that is, the latter can be considered a full cut brilliant.

The Trilliant Cut Was Developed to Get Better Yield From Rough Stones

macle rough diamond

Flat, Twinned Diamond Rough (Macle)

Trilliant cuts typically have shallow depths and this is largely due to the nature of the rough being used. In shaping trilliants, triangular shaped roughs called macles are usually used in order to maximize weight retention.

As you can see from the example above, the overall shape and outline of the macle makes it a perfect candidate to achieving a trilliant. In today’s market, the terms triangular brilliant and triangular modified brilliant are used by GIA in their lab reports to describe unbranded triangle shaped diamonds.



Now that you have some understanding of the triangular cut diamond, the next most important question on you mind is probably learning how to pick one. Continue reading on the next page to get insights with our tips and advice for choosing a beautiful trilliant cut.

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