My earliest discovery was a simple concept. Variations in pavilion angle can be compensated for by a much larger opposing variation in crown angle. This is common sense, but then common sense is not common. Many experts in the diamond industry still argue against this simple principle.
Light is about four times more likely to be influenced by a pavilion than a crown facet.
Rays may both enter and leave via the table, bounce off 2 pavilion facets and never pass through a crown facet. Very few rays pass in and out through two crown facets. Pavilion facets completely change a rays direction, where-as Most of a ray of light perpendicular to a crown facet passes straight through. The variations compensate for each other. All rights reserved.