Trilliant cut

Introduction and History of Trilliant Cut

• The trilliant cut was introduced by the Asscher brothers in Amsterdam.
• Leon Finker created his version of the triangular brilliant cut diamond, called the trillion cut.
• Henry Meyer Diamond Company also cut triangular brilliant diamonds, but their stones were cut slightly differently.
• Henry Meyer referred to his diamond cut as trilliant, while Finker called his cut trillion.
• Marvin Finker, son of Leon Finker, patented the cut and trademarked the term Trillion.

Trademark Loss and Alternative Terms

• In 1986, a federal court judge ruled that the words Trillion and Trilliant were phonetically equivalent.
• The term trilliant, being a concatenation of the generic term triangular brilliant, could no longer be a registered trademark.
• Finker introduced their patented cut as Trielle and TRIELLE in a stylized design.
• After losing the trademark, the term trillion cut became used for all triangular-shaped gems.
• GIA uses the terms triangular brilliant and triangular modified brilliant for non-branded diamonds.

Straight Cut Trilliant

• The straight edged trillion cut is usually used as accent gemstones.
• It displays sharp brilliance and fire when cut to the correct depth.
• The ideal length to width ratio for this cut is 1:14.
• Straight edged trillion cuts are commonly used on either side of a main, larger stone in a ring.
• Good scintillation can be achieved with this cut.

Curved Cut Trilliant

• The curved triangular brilliant is known as trilliant.
• This cut has three soft points and curved sides.
• The length to width ratio should be 1:1 to keep the gemstone proportioned.
• It is a softer version of the uncurved cut.
• Curved trilliant cuts can be found as solitary gems or as accent gems.

Related Topics

• Cut (gems)
• Diamond cut
• International Colored Gemstone Association
• Proprietary patented diamond cuts
• References

Trilliant cut Data Sources