Princess Shaped Loose Diamonds: "Princess Cut Loose Diamonds
The Princess is a brilliant-style shape with sharp, uncut corners. It is typically cut perfectly square, rather than as a rectangle. Brilliant style refers to vertical direction crown and pavilion facets instead of the older, step-style horizontal-direction facets. It is a straight edged square with pavilion facets that are wide at the culet and narrowed toward the girdle, the opposite of the pavilion-facet arrangement on a curved-corner radiant.
The Princess was developed in 1980-81 by Betzalel Ambar and Israel Itzkowitz, of the Los Angeles-based cutting and manufacturing company, Ambar. At the time it was invented, it was considered avant garde.
Princess generally has 76 facets, giving it more brilliance and fire than a round brilliant. "