Gem with brilliant cut

Abstract

Brilliant-cut gemstone, wherein the crown angle (α) is between 32.8° and 33.0°.

1 . Brilliant-cut gemstone, characterized in that the crown angle (″) is between 32.8E and 33.0E. 
     
     
         2 . Gemstone as claimed in  claim 1 , characterized in that the pavilion angle ($) is between 41.7E and 41.9E. 
     
     
         3 . Gemstone as claimed in  claim 1 , characterized in that the gemstone ( 1 ) is comprised at least to a large part, preferably entirely, of cubic zirconia. 
     
     
         4 . Gemstone as claimed in  claim 1 , characterized in that the angle between the girdle plane ( 7 ) and those pavilion facets ( 8 ), which have a point disposed in the direction toward the girdle ( 4 ), is between 41.7E and 41.9E, and/or the angle between the girdle plane ( 7 ) and those pavilion facets ( 9 ) which border with a broadside on the girdle ( 4 ) is between 42.8E and 43.0E. 
     
     
         5 . Gemstone as claimed in  claim 1 , characterized in that the angle between the girdle plane ( 7 ) and those crown facets ( 10 ), which border with a broadside on the table ( 5 ), is between 20.2E and 20.4E and/or the angle between the girdle plane ( 7 ) and those crown facets ( 11 ) which have a point bordering on the girdle ( 4 ) is between 32.8E and 33.0E and/or the angle between the girdle plane ( 7 ) and those crown facets ( 12 ) which border with a broadside on the girdle ( 4 ) is between 39.3E and 39.5E. 
     
     
         6 . Gemstone as claimed in  claim 2 , characterized in that the gemstone ( 1 ) is comprised at least to a large part, preferably entirely, of cubic zirconia. 
     
     
         7 . Gemstone as claimed in  claim 2 , characterized in that the angle between the girdle plane ( 7 ) and those pavilion facets ( 8 ), which have a point disposed in the direction toward the girdle ( 4 ), is between 41.7E and 41.9E, and/or the angle between the girdle plane ( 7 ) and those pavilion facets ( 9 ) which border with a broadside on the girdle ( 4 ) is between 42.8E and 43.0E. 
     
     
         8 . Gemstone as claimed in  claim 3 , characterized in that the angle between the girdle plane ( 7 ) and those pavilion facets ( 8 ), which have a point disposed in the direction toward the girdle ( 4 ), is between 41.7E and 41.9E, and/or the angle between the girdle plane ( 7 ) and those pavilion facets ( 9 ) which border with a broadside on the girdle ( 4 ) is between 42.8E and 43.0E. 
     
     
         9 . Gemstone as claimed in  claim 2 , characterized in that the angle between the girdle plane ( 7 ) and those crown facets ( 10 ), which border with a broadside on the table ( 5 ), is between 20.2E and 20.4E and/or the angle between the girdle plane ( 7 ) and those crown facets ( 11 ) which have a point bordering on the girdle ( 4 ) is between 32.8E and 33.0E and/or the angle between the girdle plane ( 7 ) and those crown facets ( 12 ) which border with a broadside on the girdle ( 4 ) is between 39.3E and 39.5E. 
     
     
         10 . Gemstone as claimed in  claim 3 , characterized in that the angle between the girdle plane ( 7 ) and those crown facets ( 10 ), which border with a broadside on the table ( 5 ), is between 20.2E and 20.4E and/or the angle between the girdle plane ( 7 ) and those crown facets ( 11 ) which have a point bordering on the girdle ( 4 ) is between 32.8E and 33.0E and/or the angle between the girdle plane ( 7 ) and those crown facets ( 12 ) which border with a broadside on the girdle ( 4 ) is between 39.3E and 39.5E. 
     
     
         11 . Gemstone as claimed in  claim 4 , characterized in that the angle between the girdle plane ( 7 ) and those crown facets ( 10 ), which border with a broadside on the table ( 5 ), is between 20.2E and 20.4E and/or the angle between the girdle plane ( 7 ) and those crown facets ( 11 ) which have a point bordering on the girdle ( 4 ) is between 32.8E and 33.0E and/or the angle between the girdle plane ( 7 ) and those crown facets ( 12 ) which border with a broadside on the girdle ( 4 ) is between 39.3E and 39.5E. 
     
     
         12 . Gemstone as claimed in  claim 6 , characterized in that the angle between the girdle plane ( 7 ) and those pavilion facets ( 8 ), which have a point disposed in the direction toward the girdle ( 4 ), is between 41.7E and 41.9E, and/or the angle between the girdle plane ( 7 ) and those pavilion facets ( 9 ) which border with a broadside on the girdle ( 4 ) is between 42.8E and 43.0E. 
     
     
         13 . Gemstone as claimed in  claim 7 , characterized in that the angle between the girdle plane ( 7 ) and those crown facets ( 10 ), which border with a broadside on the table ( 5 ), is between 20.2E and 20.4E and/or the angle between the girdle plane ( 7 ) and those crown facets ( 11 ) which have a point bordering on the girdle ( 4 ) is between 32.8E and 33.0E and/or the angle between the girdle plane ( 7 ) and those crown facets ( 12 ) which border with a broadside on the girdle ( 4 ) is between 39.3E and 39.5E. 
     
     
         14 . Gemstone as claimed in  claim 8 , characterized in that the angle between the girdle plane ( 7 ) and those crown facets ( 10 ), which border with a broadside on the table ( 5 ), is between 20.2E and 20.4E and/or the angle between the girdle plane ( 7 ) and those crown facets ( 11 ) which have a point bordering on the girdle ( 4 ) is between 32.8E and 33.0E and/or the angle between the girdle plane ( 7 ) and those crown facets ( 12 ) which border with a broadside on the girdle ( 4 ) is between 39.3E and 39.5E.