by Tom Herbst

This is an interesting geometric design. It brings the bright, large flashes of a "reflector" type stone to the cushion triangle, and is well-suited to the common shape of tourmaline rough.

Trigger is a straightforward design, and is appropriate to all skill levels. BOG-optimized for ISO and tilt.

At right is a 8.5mm 3.1 carat Trigger cut in Brazilian green tourmaline.

GemCAD and GemRay output for Figaro appear below. The GemCAD file is available here.