Patent ID: 7146827

Claim:
A mixed cut gemstone comprising: a girdle in a girdle plane; a crown above said girdle; a pavilion below said girdle; and a culet, said crown having a girdle break, a table break and a table, said table break being cut with triangular shaped facets and said girdle break being cut with triangular and quadrilaterally shaped facets, said pavilion width having a width and a length formed by two pairs of opposing pavilion sides and four pavilion corners, said pavilion including: a first step adjacent to said girdle and to a first step facet junction, a second step adjacent to said first step facet junction and to a second step facet junction, a third step adjacent to said second step facet junction and to a third step facet junction, and a fourth step adjacent to said third step facet junction and to said culet, wherein each of said first, second, third and fourth steps further comprises a plurality of facets, and wherein said plurality of facets of said first step is greater than said plurality of facets of said second step by at least one facet.