PrecisionGem|1415895025|3782671 said:The culet is about the worst place to have any inclusions or rough surface on a stone. Anything in culet gets reflected many times over in the stone and 1 spot can turn into looking like 8 or 16 depending on the symmetry of the stone. Sometimes when I'm finished cutting a stone there will be a tiny piece of glue left on the culet, I don't notice it when cleaning the stone, but once you flip it over it is really apparent. The same would happen if it is chipped or rough.