Patent ID: 6698239
Filing Date: 2004-03-02
Classification: A44C

Abstract:
A brilliant-cut gemstone comprising:a crown comprising; 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 frown facets and a second edge positioned adjacent to a neighboring one of the upper triangular crown facets; a girdle; 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.