BOG, a Better Optimizer for GemRay
Front end to GemRay that searches pavilion and crown angles against user-set targets for brightness, tilt performance, sparkle and dispersion.
The record
What it makes
Named as the maker names them on its own site. Specifications and availability change; confirm with the maker before ordering.
Worth knowing
The name stands for a Better Optimizer for GemRay, not Bob's Optimised Gemcut. Written by Tom Herbst; the site gives version 1.2 dated 15 August 2005 and the documentation was last modified in 2002, with Windows 98, NT, 2000 and XP listed as tested platforms. It is abandonware that still circulates among faceters, it requires a separate copy of the DOS GemRay 1.43 or later, and the site serves over plain HTTP with no HTTPS available.
Compiled from boghome.com, read on August 16, 2026.
We record what makers publish about themselves. We have not tested this equipment, we take no commission on it, and a listing here is not a recommendation to buy.