Gemstone cut
OwnerZev W. Weitmaninventor
Life of this patent
Estimating the term…
Abstract
A gemstone cut into a round stone and method of cutting a gemstone are disclosed herein. A crown having a table may be surrounded by eight star sets. The eight star sets may be surrounded by eight bezel facets. The eight bezel facets may be surrounded by eight pairs of upper girdle facet sets. Each upper girdle facet set may have one primary upper girdle facet and two secondary upper girdle facets. Each star set may have one primary star facet and four secondary star facets. A bottom having a culet may be surrounded by 8 pavilions the eight pavilions may be surrounded by 8 lower girdle facet sets. Each lower girdle facet set may have one primary lower girdle facet and two secondary lower girdle facets. Both the crown and bottom may be surrounded by 16 girdle facets or by perfectly circular girdle.
Claims10
A gemstone which comprises:
- a crown comprising:
- a table surrounded by six bezel facets;
- six star sets;
- and
- six pairs of upper girdle facet sets,
- wherein each star set includes one primary star facet and at least two secondary star facets,
- wherein each pair of the upper girdle facet sets includes two primary upper girdle facets and at least two secondary upper girdle facets,
- wherein each bezel facet is nonadjacent from every other bezel facet,
- wherein the primary star facets are polygons having 4, 6, or 8 sides,
- wherein each primary star facet is positioned between two bezel facets and each primary star facet is cut approximately 3 or 4 degrees flatter than the adjacent bezel facets,
- wherein each primary upper girdle facet is a quadrilateral polygon,
- wherein each primary star facet extends at least 70% from the table toward the girdle, and
- wherein when the gemstone is viewed from above, it appears to have a scalloped perimeter, and
- a bottom comprising:
- six lower girdle facet sets and
- six main facets,
- wherein each lower girdle facet set includes one primary lower girdle facet and at least four secondary lower girdle facets.
A gemstone comprising a crown which comprises:
- a table surrounded by six bezel facets;
- six star sets;
- and
- six pairs of upper girdle facet sets,
- wherein each star set includes one primary star facet and at least two secondary star facets,
- wherein each pair of the upper girdle facet sets includes two primary upper girdle facets and at least two secondary upper girdle facets,
- wherein each bezel facet is nonadjacent from every other bezel facet,
- wherein the primary star facets are polygons having 4, 6, or 8 sides,
- wherein each primary star facet is positioned between two bezel facets and each primary star facet is cut approximately 3 or 4 degrees flatter than the adjacent bezel facets,
- wherein each primary upper girdle facet is a quadrilateral polygon,
- wherein each primary star facet extends at least 70% from the table toward the girdle, and
- wherein when the gemstone is viewed from above, it appears to have a scalloped perimeter.
Dependencies are inferred from the claim text.