Helium help : Comprehensive list of report parameters
Azimuths deviation from ideal

Applicable to brilliant

Parameters Azimuths deviation from ideal are values of deviation in degrees between azimuths of real facets and azimuths of virtual facets of ideal round brilliant cut. Ideal azimuths of facets are 0.000, 45.000, 90.000, 135.000, 180.000, 225.000, 270.000, 315.000, and 360.000.

Table 1. Azimuths deviation from there ideal positions

Table of azimuths deviation from ideal

DiamCalc Brilliant Cut Parameters