The standard number of facets of a Trilliant cut gemstone is 43.
Trilliant cut gemstones are based on a triangular shape.
Usually with truncated corners and displaying a variety of facet designs, this cut creates a spectacular wedge of brilliant fire.
The tips and culets of Trilliants are pointed and thin.
Some jewelers only bezel-set Trilliants, though prongs that protect the tips work well and show more of the gem.
As you look down through the gem, the culet generally appears centered in the middle of the table showing the pavilion of the gem with an attention to symmetry.
When you examine the gem in profile, the girdle and table facet are generally parallel.
The pavilion’s main facet usually extends from the culet perpendicularly until it intersects the girdle.
Because of their equilateral form, Trilliants return lots of light and color.
They are considered nearly as brilliant as Round cuts, so they are a great choice for customers who like brilliance but want something other than round.
Variations include rounded-corner triangles, modified shield cuts and triangular step cuts.
There should be as few polishing marks as possible and the surface should appear glossy and reflective.
Good polishing helps maximize brilliance and scintillation in Trilliants.
Trilliants work well with light-colored gems such as Diamonds where cutters try to maximize brilliance.
First developed in Amsterdam, the exact design can vary depending on a particular gem’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.
Some twinned (a crystal growing within a crystal) Diamond rough is naturally triangular (called “Macle”) and is ideal for Trilliants.
Diamond Imports has a magnificent Triangular Step Cut 3.14 carat H SI2 Very Good Finish for sale - DCLA Laser Inscribed #158136.
Additional reading : The Mystical Trilliant Cut Diamond
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