Here are some tips when it comes to colors from Black Diamond Pigments:
All colors with Imperial in the name contain red glitter.
All colors with Diamond in the name shine brighter than their non diamond variation.
All colors with Lux in the name are more glitter than mica powder.
All colors with Galaxy in the name are more glitter than mica powder.
All colors with Ghost in the name are white or off white bases with different highlight colors blended in.
We tend to use the Ghost and Lux colors in conjunction with other colors and not as much just on their own.