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.
- Cut (gems)
- Diamond cut
- International Colored Gemstone Association
- Proprietary patented diamond cuts
Trilliant cut Data Sources