Patent ID: 7878025

Claim:
An oval shaped diamond, adapted to display a hearts and arrows pattern when exposed to light characteristic of the hearts and arrows pattern in a round diamond, having an oval shape including two long sides symmetrical to each other, two short sides symmetrical to each other and four corner sides symmetrically located between the long sides and the short sides respectively, and comprising eight main crown facets of unequal size surrounding a flat table and eight main pavilion facets of unequal size, sixteen pavilion half facets; a girdle of non-uniform thickness separating the crown and pavilion facets and two subsidiary pavilion facets in alignment with each other on the long sides of the diamond adjacent a main pavilion facet wherein the eight main crown facets include two crown facets on the long side each having one edge in horizontal alignment with the long side when the long side is oriented in a horizontal direction and being aligned in parallel with one another, two crown facets on the short side having one edge in vertical alignment with the short side when the short side is oriented in a vertical direction and being aligned in parallel with one another and with the crown facets on the corner sides disposed opposite to one another with each having one side extending in a straight line between a crown facet on the long side and a crown facet on the short side and having a parallel relationship with one another.