Definitions for "Crown Angle"
The angle measured between the girdle plane and the bezel facets. Along with the table size, the crown angle helps determine the amount of dispersion displayed by the diamond.
The angle measurement that refers to the crown height (top area of the diamond) in relation to the girdle (middle section). It is usually referred in terms of a percentage in relation to a 90% angle. The standard crown angle on a diamond is 341/2%. Too much of a variance from this standard may affect the sparkle of a diamond.
The angle where the diamond's bezel facets intersect with the girdle plane. The positioning of these facets is critical in determining the amount of light dispersion and fire in a diamond.