Trilliant cut

They used the term "Trillion" and "Trilliant" in a stylized design until they lost the trademark in 1986 when a federal court judge decided that the words "Trillion" and "Trilliant" were phonetically equivalent.

[2] Since trilliant was a concatenation of the generic term "triangular brilliant", it could no longer be a registered trademark.

Finker gave the term "trillion" to the trade in a half-page advertisement in the New York Times and announced that their patented cut would be known as Trielle and TRIELLE in a stylized design.

It is generally cut with a 1:14 length to width ratio with straight edges.

This straight edged trillion cut is usually used for accent gemstones, on either side of a main, larger stone of a ring.