Four-stone seamless cushion cut diamond and method for making the same

Abstract

Presented is a diamond comprising a table, a crown, a girdle, and pavilion, and a culet. The table is rectangular, having a length and a width. The table comprises a first side, adjacent to a second side, adjacent to a third side, and adjacent to a fourth side. The first side of the table is directly connected with a first facet of the girdle. The second side of the table is directly connected with a second facet of the girdle. The crown comprises a plurality of facets connecting the third side and the fourth side of the table to the girdle. The pavilion is connected to the girdle. The culet is positioned directly below a point having a 1% deviation from the center of the girdle.

What is claimed is: 
     
         1 . A diamond comprising:
 a table, a crown, a girdle, and pavilion, and a culet;
 wherein the table is rectangular, having a length and a width, and comprises:
 a first side, adjacent to a second side, adjacent to a third side, and adjacent to a fourth side; 
 wherein the first side of the table is directly connected with a first facet of the girdle; 
 wherein the second side of the table is directly connected with a second facet of the girdle; and 
 
 wherein the crown comprises:
 a plurality of facets connecting the third side and the fourth side of the table to the girdle; and 
 
 wherein the pavilion connected to the girdle; and 
 wherein the culet positioned directly below a point having a 1% deviation from the center of the girdle. 
   
     
     
         2 . The diamond of  claim 1 , wherein the girdle comprises four facets, the four facets comprising the first facet and the second facet, the four facets forming three substantially 90 degree angles and wherein the girdle further comprises a plurality of curving facets connecting one of the four facets to another one of the four facets. 
     
     
         3 . The diamond of  claim 2 , wherein the plurality of curving facets comprises eight curving facets. 
     
     
         4 . The diamond of  claim 1 , wherein the diamond has a depth is between 70% and 80%. 
     
     
         5 . The diamond of  claim 1 , wherein the diamond has a length/width ratio between 1 and 1.03. 
     
     
         6 . A method of cutting a diamond from a princess cut diamond, said princess cut diamond comprising:
 a table;   a crown disposed below the table   a girdle disposed beneath the crown, wherein the girdle comprises four facets forming a substantially rectangular shape, wherein the four facets comprise a first facet, a second facet substantially perpendicular to the first facet, a third facet substantially perpendicular to the second facet, and a fourth facet substantially perpendicular to the third facet and substantially perpendicular to the first facet;   a pavilion disposed below the girdle, and   a culet directly below a point substantially at the center of the girdle, wherein the method comprises:   making a cut parallel to the third facet, proceeding from the second facet to the fourth facet, thereby:   removing a portion of the crown and pavilion,   shortening the second facet and the fourth facet, and   resulting in a first new girdle facet, wherein the first new girdle facet is directly connected to the table;   making a cut parallel to the shortened fourth facet, proceeding from the first new girdle facet to the third facet, thereby:   removing another portion of the crown and the pavilion,   shortening the third facet,   shortening the first new girdle facet to a first measurement,   resulting in a second new girdle facet having a second measurement, wherein the second new girdle facet is directly connected to the table, and perpendicular shortened first new girdle facet, and   wherein the shortened first new girdle facet and the second new girdle facet meet at a first point; and   cutting the pavilion such that the culet is directly under a second point that is within 1% deviation of half the first measurement from the first point and half the second measurement from the first point.   
     
     
         7 . The method of  claim 6 , wherein the shortened new girdle facet, the second new girdle facet, the third shorted girdle facet, and the shortened fourth girdle facet form four corners, and further comprising:
 cutting a plurality of curving facets to round one of the four corners.   
     
     
         8 . The method of  claim 7 , wherein the plurality of curving facets comprises eight curving facets. 
     
     
         9 . The method of  claim 6 , wherein the distance between the culet and the table after cutting the pavilion is less than the distance between the pavilion and the table before cutting the pavilion. 
     
     
         10 . The method of  claim 6 , wherein the length/width ratio is between 1.00 to 1.03 of the width. 
     
     
         11 . The method of  claim 6 , further comprising:
 making a cut through the crown increasing the table to 75%.   
     
     
         12 . The method of  claim 6 , wherein the crown comprises four corner facets, and wherein making the cut parallel to the first facet of the girdle comprises making a cut from the tip of two of the four corner facets. 
     
     
         13 . A diamond set, said gemstone set comprising:
 four diamonds according to  claim 1 ,   wherein the culets of the four gemstones is disposed such that:
 the first facet of the girdle of a first one of the four diamonds abuts the second facet of the girdle of a second of the four diamonds; 
 the second facet of the girdle of the second one of the four diamonds abuts the first facet of the girdle of a third one of the four diamonds; 
 the first facet of the girdle of the third one of the four diamonds abuts the second facet of the girdle of the fourth one of the four diamonds; 
 the first facet of the girdle of the fourth one of the four diamonds abuts the second facet of the girdle of the first one of the four diamonds; and 
 the tables of the four diamonds are substantially planar. 
   
     
     
         14 . The diamond set of  claim 13 , wherein:
 the first one of the four diamonds, wherein the crown comprises one or more facets that are adjacent to first girdle facet and one or more facets that are adjacent to the second girdle facet,   the second one of the four diamonds, wherein the crown comprises a one or more facets that are adjacent to first girdle facet and one or more facets that are adjacent to the second girdle facet, and wherein the one or more facets of the crown that are adjacent to the second girdle facet of the second one of the four diamonds diamond and the one or more facets of the crown adjacent to the first girdle facet of the first diamond one of the four diamonds are substantially coplanar;   the third one of the four diamonds, wherein the crown comprises a one or more facets that are adjacent to first girdle facet and one or more facets that are adjacent to the second girdle facet, and wherein the one or more facets of the crown that are adjacent to the second girdle facet of the third one of the four diamonds diamond and the one or more facets of the crown adjacent to the first girdle facet of the second one of the four diamonds diamond are substantially coplanar;   the fourth one of the four diamonds, wherein the crown comprises a one or more facets that are adjacent to first girdle facet and one or more facets that are adjacent to the second girdle facet, and wherein the one or more facets of the crown that are adjacent to the second girdle facet of the fourth one of the four diamonds diamond and the one or more facets of the crown adjacent to the first girdle facet of the third one of the four diamonds diamond are substantially coplanar.   
     
     
         15 . The diamond set of  claim 13 , wherein the depth each of the four diamonds are different. 
     
     
         16 . The diamond set of  claim 13 , wherein the girdle of each one of the four diamonds the girdle comprises a plurality of curving facets.