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