Abstract: A gemstone cut with a table facet, where the gemstone receives existing light from around the viewer and the facets on the bottom of the diamond effectively reflect the existing light back into the eyes of the beholder in such a manner as to maximize light performance, and to produce a unique and distinct look of light in the form of a flower with eight rounded pedals under the table facet which can be observed in natural ambient light.

Abstract: A modified princess cut diamond and method of forming a modified princess cut diamond into a symmetrical shape possessing a hearts and arrows pattern characteristic of the true hearts and arrows pattern in a round cut diamond.

Abstract: A triangular star shaped diamond adapted to display a hearts and arrows pattern when exposed to light comparable to the hearts and arrows pattern in a round diamond, comprising: six main crown facets, twelve crown half facets, a table facet, six main pavilion facets and an even number of main girdle facets separating the crown facets from the pavilion facets with each main crown facet having a symmetrical main crown facet in an opposing relationship and at least one edge in parallel alignment with an edge of the opposing main crown facet.

Abstract: A gemstone including a substantially rectangular girdle, a crown extending in a first direction from the girdle, and a pavilion extending in a second direction from the girdle opposite the first direction. The gemstone has 65 uniquely arranged and angled facets, 25 of which are in the crown, and 40 of which are in the pavilion. The height of the crown is preferably between 9½ to 13½% of the width of the stone, the total depth of the stone is preferably between 63-70.9% of the width of the stone, and the width of the table is preferably between 60-68% of the width of the stone. The crown has four sides, a table, and four bezel facets each positioned at a respective corner of the crown.