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US 6,745,596 B2Granted
Princess cut diamond
AssigneeSamuel Aaron, Inc.
InventorRobert J. Wueste
Life of this patent
Estimating the term…
Abstract
A princess cut gemstone having a pavilion, a girdle, and a crown. In the presently preferred embodiment, the princess cut gemstone is a diamond with 101 facets: a pavilion of 64 facets, a girdle of 4 facets, and a crown with 33 facets (including the table).
Claims23
A princess cut gemstone comprising:
- a crown;
- a girdle comprising four girdle facets;
- and
- a pavilion comprising forty-four star pavilion facets in substantially the shape of a four-pointed star, wherein said forty-four star pavilion facets comprise:
- four substantially kite-shaped central star pavilion facets, each of said four central star pavilion facets having a wide triangular end formed of two small edges and a narrow end formed of two long edges, wherein the point at the corner of the wide triangular end forms the bottom point of the pavilion and each small edge is shared with another central star pavilion facet;
- eight substantially triangular first degree star pavilion facets, each of said eight first degree star pavilion facets having a short side shared with another first degree star pavilion facet, and a long side shared with one of said eight central star pavilion facets;
- eight substantially triangular second degree star pavilion facets, each of said eight second degree star pavilion facets having a short side shared with another second degree star pavilion facet, and a long side shared with one of said eight first degree star pavilion facets;
- eight substantially triangular third degree star pavilion facets, each of said eight third degree star pavilion facets having a short side shared with another third degree star pavilion facet, and a long side shared with one of said eight second degree star pavilion facets;
- eight substantially triangular fourth degree star pavilion facets, each of said eight fourth degree star pavilion facets having a short side shared with another fourth degree star pavilion facet, and a long side shared with one of said eight third degree star pavilion facets;
- and
- eight substantially triangular fifth degree star pavilion facets, each of said eight fifth degree star pavilion facets having a short side shared with another fifth degree star pavilion facet, and a long side shared with one of said eight fourth degree star pavilion facets.
8 more elements
A princess cut gemstone comprising:
- a pavilion;
- a girdle comprising four girdle facets;
- and
- a crown comprising twenty-five star crown facets in substantially the shape of a four-pointed star, wherein the twenty-five star crown facets comprise:
- a table facet in the shape of an eight-sided polygon, said table facet forming the center of the four-pointed star shape;
- eight substantially triangular inner star crown facets, each having an inner edge shared with one of the eight edges of the table facet, and a side edge shared with another inner star crown facet;
- eight substantially triangular middle star crown facets, each having an inner edge shared with the one of said eight inner star crown facets, and a side edge shared with another middle star crown facet;
- and
- eight substantially triangular outer star crown facets, each having an inner edge shared with one of said eight middle star crown facets, and a side edge shared with another outer star crown facet.
6 more elements
Dependencies are inferred from the claim text.