This is a brilliant-cut triangle
diamond - a wedge shape with fiery brilliance. It can be a traditional
triangular shape with pointed corners, or a more rounded triangular
shape. Trillions (also called Trilliants or Triangles) are often
used as diamond accents in three stone rings and other jewelry
settings, but may also be chosen to be set as solitaire diamonds.
This is a spectacular wedge of brittle
fire. First developed in Amsterdam, the exact design can vary
depending on a particular diamond's natural characteristics and
the cutter's personal preferences. It may be a traditional triangular
shape with pointed corners or a more rounded triangular shape
with 25 facets on the crown, 19 facets on the pavilion,
and a polished girdle. It is definitely for the adventurous.
Length to width ratio: An equilateral
triangle is prefered in a trillion diamond. Variance in the ratio
of length to width should not deviate considerably.
