Brilliantized gemstone and method of manufacture

Abstract

A diamond, which has an arched configuration on one end and a baguette-style configuration on the other, comprising a girdle, a top or crown above the girdle, and a pavilion or base below the girdle, The crown terminates in an upper planar surface known as a “table,” which is generally parallel to the girdle plane. The arched end is comprised of a series of crown facets that are preferably arranged about a common center. The pavilion also includes several sets of inner and outer pavilion facets where the inner pavilion facets terminate at respective lowerbreak lines.

What is claimed is: 
     
         1 . An arched diamond, comprising:
 a generally planar table lying in a table plane;   a circumferential girdle lying in a girdle plane, the table plane being substantially parallel to the girdle plane;   a first end of the diamond being substantially square and including a first-end crown section defined by main, lower main, and upper main crown facets lying between the table and girdle;   a second, arched, end of the diamond being arched shaped and including a crown section defined by a series of angularly arranged crown facets arranged radially about a common center in lower, middle, and upper rows;   the diamond including a pavilion section, lying between the girdle and a culet, defined by first, second, third, fourth, and fifth sets of outer pavilion facets and first and second sets of inner pavilion facets arranged in an arcuate manner about a common center.   
     
     
         2 . The diamond of  claim 1 , wherein the main crown facets are oriented at a break angle of approximately in the range of 37°-39° relative to the girdle plane. 
     
     
         3 . The diamond of  claim 1 , wherein the lower main crown facets are oriented at a break angle of approximately in the range of 39°-41° relative to the girdle plane. 
     
     
         4 . The diamond of  claim 1 , wherein the upper main crown facets are oriented at a break angle of approximately in the range of 35°-37° relative to the girdle plane. 
     
     
         5 . The diamond of  claim 1 , wherein the lower row of crown facets at the second, arched, end is oriented at a break angle of approximately in the range of 39°-41° relative to the girdle plane. 
     
     
         6 . The diamond of  claim 1 , wherein the middle row of crown facets at the second, arched, end is oriented at a break angle of approximately in the range of 37°-39° relative to the girdle plane. 
     
     
         7 . The diamond of  claim 1 , wherein the upper row of crown facets at the second, arched, end is oriented at a break angle of approximately in the range of 35°-37° relative to the girdle plane. 
     
     
         8 . The diamond of  claim 1 , wherein the first set of outer pavilion facets is oriented at a break angle of approximately in the range of 41.5°-44.5° relative to the girdle plane. 
     
     
         9 . The diamond of  claim 1 , wherein the second set of outer pavilion facets is oriented at a break angle of approximately in the range of 41.5°-43.5° relative to the girdle plane. 
     
     
         10 . The diamond of  claim 1 , wherein the third set of outer pavilion facets is oriented at a break angle of approximately in the range of 37.5°-44.5° relative to the girdle plane. 
     
     
         11 . The diamond of  claim 1 , wherein the fourth set of outer pavilion facets is oriented at a break angle of approximately in the range of 35.5°-38.5° relative to the girdle plane. 
     
     
         12 . The diamond of  claim 1 , wherein the fifth set of outer pavilion facets is oriented at a break angle of approximately in the range of 37.5°-40.5° relative to the girdle plane. 
     
     
         13 . The diamond of  claim 1 , wherein the first set of inner pavilion facets is oriented at a break angle of approximately in the range of 39.5°-42.5° relative to the girdle plane. 
     
     
         14 . The diamond of  claim 1 , wherein the second set of inner pavilion facets is oriented at a break angle of approximately in the range of 31.5°-34.5° relative to the girdle plane. 
     
     
         15 . An arched diamond, comprising:
 a table lying in a table plane;   a girdle lying in a girdle plane, the girdle plane being substantially parallel to the table plane;   the diamond being comprised of a first end and a second end;   the first end being comprised of a first-end crown section and a first-end pavilion section;   the second end being comprised of a second-end crown section and a second-end pavilion section;   the first-end crown section being comprised of:
 a portion of the table, and main, lower main, and upper main crown facets; 
   the first-end pavilion section being comprised of:
 a portion of a second set of outer pavilion facets and full sets of third, fourth, and fifth sets of outer pavilion facets and a portion of a first set of inner pavilion facets and a full second set of inner pavilion facets, the first and second set of inner pavilion facets terminating at a culet; 
   the second-end crown section being comprised of:
 a continuation of the table, and lower, middle, and upper rows of crown facets; and 
   the second-end pavilion section being comprised of:
 a full set of a first set of outer pavilion facets and a portion of a second set of outer pavilion facets and a portion of the first set of inner pavilion facets. 
   
     
     
         16 . The diamond of  claim 15 , wherein the main crown facets are oriented at a break angle of approximately in the range of 37°-39° relative to the girdle plane. 
     
     
         17 . The diamond of  claim 15 , wherein the lower main crown facets are oriented at a break angle of approximately in the range of 39°-41° relative to the girdle plane. 
     
     
         18 . The diamond of  claim 15 , wherein the upper main crown facets are oriented at a break angle of approximately in the range of 35°-37° relative to the girdle plane. 
     
     
         19 . The diamond of  claim 15 , wherein the lower row of crown facets at the second, arched, end is oriented at a break angle of approximately in the range of 39°-41° relative to the girdle plane. 
     
     
         20 . The diamond of  claim 15 , wherein the middle row of crown facets at the second, arched, end is oriented at a break angle of approximately in the range of 37°-39° relative to the girdle plane. 
     
     
         21 . The diamond of  claim 15 , wherein the upper row of crown facets at the second, arched, end is oriented at a break angle of approximately in the range of 35°-37° relative to the girdle plane. 
     
     
         22 . The diamond of  claim 15 , wherein the first set of outer pavilion facets is oriented at a break angle of approximately in the range of 41.5°-44.5° relative to the girdle plane. 
     
     
         23 . The diamond of  claim 15 , wherein the second set of outer pavilion facets is oriented at a break angle of approximately in the range of 41.5°-43.5° relative to the girdle plane. 
     
     
         24 . The diamond of  claim 15 , wherein the third set of outer pavilion facets is oriented at a break angle of approximately in the range of 37.5°-44.5° relative to the girdle plane. 
     
     
         25 . The diamond of  claim 15 , wherein the fourth set of outer pavilion facets is oriented at a break angle of approximately in the range of 35.5°-38.5° relative to the girdle plane. 
     
     
         26 . The diamond of  claim 15 , wherein the fifth set of outer pavilion facets is oriented at a break angle of approximately in the range of 37.5°-40.5° relative to the girdle plane. 
     
     
         27 . The diamond of  claim 15 , wherein the first set of inner pavilion facets is oriented at a break angle of approximately in the range of 39.5°-42.5° relative to the girdle plane. 
     
     
         28 . The diamond of  claim 15 , wherein the second set of inner pavilion facets is oriented at a break angle of approximately in the range of 31.5°-34.5° relative to the girdle plane.