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By Reviewed By Andreas Zabczyk

Trilliant-Cut - Trillion Cut Gemstones

Trillion cut gemstones are a striking and contemporary choice for jewelry enthusiasts, known for their unique triangular shape and exceptional brilliance. With a history that dates back to the late 20th century, this cut has gained popularity for its ability to showcase a stone’s color and clarity while providing a modern twist on traditional gemstone cuts. Discover our collection of loose trillion cut gemstones for sale.

Trilliant-Cut GemStones from GemSelect
Trilliant-Cut GemStones from GemSelect

Trilliants work very well with light-colored gems - such as diamond, aquamarine, beryl and white sapphire - where cutters try to maximize brilliance. Some cutters use trilliants effectively to lighten and brighten the appearance of darker stones such as tanzanite, spessartite garnet, rhodolite garnet and amethyst gems.

Trillion cut gems are rarely used for softer gems, such as apatite, unless the corners are rounded. The tips and culets of trilliants are pointed and thin, making them vulnerable to breakage. Some jewelers bezel-set trilliants, though prongs that protect tips work well and show more of the stone.

Trillion Cut Gemstones

Trillion cut gemstones are almost always cut with a 1:1 length to width ratio. But there are some variations in shape, including rounded-corner triangles, straight sides and curved sides. Trillion cut gem with straight sides are usually used for side stones in a setting, while stones with slightly curved sides are used for center stones or solitaires.

The trillion cut was introduced by the Asscher brothers in Amsterdam and was later trademarked by the Henry Meyer Diamond Company of New York in 1962. Now that the patent has expired, the term "trilliant cut" is used to refer to all triangular shaped gems, even step-cut and cabochon stones.

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