Brilliant-cut diamond and method of forming thereof

A brilliant-cut gemstone comprising:

• a girdle;
• a crown having 16 lower substantially triangular crown facets, each one having a first edge positioned adjacent to the girdle, a second edge positioned adjacent to a neighboring lower triangular crown facet, and a third edge, 16 lower substantially rhomboidal crown facets, each one having a first edge positioned adjacent to the girdle, a second edge opposite to the first edge and positioned adjacent to a neighboring lower rhomboidal facet, and a third edge positioned adjacent to the third edge of a neighboring one of the 16 lower triangular crown facets, 8 middle substantially kite-shaped crown facets, each one having a first edge positioned adjacent to a first neighboring lower rhomboidal facet and a second edge contiguous with the first edge, said second edge positioned adjacent to a second neighboring lower rhomboidal facet, and 16 upper substantially triangular crown facets, each one having a first edge positioned adjacent to a neighboring one of the 8 middle kite-shaped crown facets and a second edge positioned adjacent to a neighboring one of the upper triangular crown facets;
• and
• a pavilion having 56 facets with 8 lower substantially diamond-shaped pavilion facets oriented so that each one tapers to a pointed bottom of the pavilion, 16 middle substantially kite-shaped pavilion facets, oriented so that each one is positioned adjacent to a neighboring one of the 8 lower pavilion facets at a lower edge thereof and having an upper point touching the girdle, and 32 upper substantially triangular pavilion facets, each having two sides substantially equal in length, and a third side, each substantially triangular pavilion facet being positioned so that one equal side is adjacent to a neighboring upper pavilion facet, the other equal side is positioned adjacent to a neighboring one of the 16 middle pavilion facets, and the third side is positioned adjacent to the girdle.

A brilliant-cut gemstone comprising:

• a girdle;
• a crown having 16 lower substantially triangular crown facets, each one having a first edge positioned adjacent to the girdle, a second edge positioned adjacent to a neighboring lower triangular crown facet, and a third edge, 16 lower substantially rhomboidal crown facets, each one having a first edge positioned adjacent to the girdle, a second edge opposite to the first edge and positioned adjacent to a neighboring lower rhomboidal facet, and a third edge positioned adjacent to the third edge of a neighboring one of the 16 lower triangular crown facets, 8 middle substantially triangular crown facets, each one having a first edge positioned adjacent to a first neighboring lower rhomboidal facet and a second edge contiguous with the first edge, said second edge positioned adjacent to a second neighboring lower rhomboidal facet, 8 first upper substantially triangular crown facets, each one having a first edge positioned adjacent to one of the 8 middle triangular crown facets, and 16 second upper substantially triangular crown facets, each one having a first edge positioned adjacent to a neighboring one of the 8 first upper triangular crown facets and a second edge positioned adjacent to a neighboring one of the second upper triangular crown facet;
• and
• a pavilion having 56 facets with 8 lower substantially diamond-shaped pavilion facets oriented so that each one tapers to a pointed bottom of the pavilion, 16 middle substantially kite-shaped pavilion facets oriented so that each one is positioned adjacent to a neighboring one of the 8 lower pavilion facets at a lower edge thereof and having an upper point touching the girdle, and 32 upper substantially triangular pavilion facets, each having two sides substantially equal in length, and a third side, each substantially triangular pavilion facet being positioned so that one equal side is adjacent to a neighboring upper pavilion facet, the other equal side is positioned adjacent to a neighboring one of the 16 middle pavilion facets, and the third side is positioned adjacent to the girdle.

A method of cutting a brilliant-cut gemstone, said gemstone being comprised of a crown, a girdle, and a pavilion, comprising the steps of:

• forming 8 lower substantially diamond-shaped pavilion facets with each one tapering to a pointed bottom of the pavilion;
• forming 16 middle substantially kite-shaped pavilion facets, each one positioned adjacent to a neighboring one of the 8 lower pavilion facets at a lower edge and having an upper point touching the girdle;
• and
• forming 32 upper substantially triangular pavilion facets, each one having two sides substantially equal in length and a third side, one equal side positioned adjacent to a neighboring upper pavilion facet, the other equal side positioned adjacent to a neighboring one of the 16 middle pavilion facets, and the third side positioned adjacent to the girdle.