This page gathers every stone in our collection cut as a trilliant — a triangular outline with three principal sides, faceted in a brilliant style to return light through the table. Depending on the cutter's intent, the sides may be straight for a crisp, architectural silhouette or gently curved for a softer, fuller shape. Because the triangular form spreads weight across a wide face-up area, a trilliant often reads larger than a round or oval of comparable carat weight.
The varieties represented here are Sphene, Aquamarine, Tanzanite, Paraiba Tourmaline and Blue Zircon. The choice is rarely arbitrary. Sphene and blue zircon both possess notably high dispersion, and the broad open facets of a trilliant give that fire room to display itself. Aquamarine and tanzanite are frequently cut in this shape to build colour across a generous face, while Paraiba tourmaline's cuprian blue-to-green is shown to advantage in a shallow, bright layout.
When choosing, weigh hardness and setting alongside colour. The three corners of a trilliant are its most exposed points and benefit from protective claws or a bezel, a consideration particularly worth discussing for the softer materials here.
