Improved oval shaped diamond cut having hearts and arrows pattern

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, comprising: an oval shape having two long sides symmetrical to each other, two short sides symmetrical to each other and four diagonal sides symmetrically located between the long sides and the short sides respectively, eight main crown facets, eight main pavilion facets, sixteen pavilion half facets; a uniform girdle of varying thickness separating the crown and pavilion facets, twelve subsidiary pavilion facets and eight crown star facets with each crown star facet including two facet sections of equal size and geometry on each of the two long and two short sides of the oval shaped diamond and two facet sections of non-equal size and geometry in each of the four diagonal or shoulder sides of the oval shaped diamond. 本发明提供了种椭圆形钻石，其适用于在暴露于光线时显示八心八箭图案，该八心八箭图案为在圆形钻石中的特征的八心八箭图案，包括：椭圆形形状，该椭圆形形状具有彼此对称的两条长边、彼此对称的两条短边以及分别对称地位于长边和短边之间的四个对角边；八个主冠部刻面；八个主亭部刻面；将冠