by Tom Herbst
Fritz is an interesting asymmetric reflector suitable for both deeply
saturated and lighter stones. The jagged, angular reflections really
flash and shift as the stone is rocked
The name comes from the resemblance of the reflectance pattern to an
old TV "on the fritz." Changing the pavillion and crown angles really
changes the visual impression, and it was good to see the GemRay predictions
Fritz is a straightforward design, and is appropriate to all skill
levels. BOG-optimized for ISO and tilt.
At right is a 7 mm 1.9 carat Fritz cut in Brazilian seafoam tourmaline.
GemCAD and GemRay output for Figaro appear below. The GemCAD file is available