Brilliant Cut Gemstone Cluster

Abstract

A brilliant cut gemstone cluster setting is provided which includes a faceted large round gemstone; a plurality of small round gemstones; and a cluster setting having a central round cavity receiving the faceted large round gemstone and a plurality of peripheral cavities surrounding the central round cavity with each peripheral cavity receiving one of the plurality of small round gemstones and being set at an angle relative to the central round cavity to cause the small round gemstone to simulate a crown angle of a brilliant cut stone, and the plurality of small round gemstones retaining the faceted large round gemstone. Also provided is a cluster setting for holding the gemstones.

1 . A brilliant cut gemstone duster setting comprising:
 (i) a faceted large round gemstone;   (ii) a plurality of small round gemstones;   (iii) a duster setting having a central round cavity receiving the faceted large round gemstone and a plurality of peripheral cavities surrounding the central round cavity with each peripheral cavity being smaller than the central cavity and receiving one of the plurality of small round gemstones, the peripheral cavities each being set at an angle relative to the central round cavity to cause the small round gemstones to simulate a crown angle of a brilliant cut stone, the plurality of small round gemstones having portions overlapping the faceted large round gemstone, and a stone facet angle ranging from 30 to 40 degrees is formed at an intersection between a plane coincident with a table facet of one of the plurality of small round stones and a plane coincident with an upper table belonging to the faceted large round gemstone.   
     
     
         2 . The brilliant cut gemstone according to  claim 1  wherein the cluster setting further comprises setting bars flanking each of the peripheral cavities, the setting bars on an outward surface having a triangular plate with two elongated edges and a curved edge, and elongated facets with concave outward curvatures adjoining each of the two elongated edges of the triangular plate, the triangular plate and elongated facets being finished to reflect light. 
     
     
         3 . The brilliant cut gemstone duster according to  claim 2  wherein the setting bars are eight in number. 
     
     
         4 . The brilliant cut gemstone duster according to  claim 1  wherein a triangular plate angle ranging from 10 to 85 degrees is formed at an intersection between a plane coincident with a surface of the triangular plate and a plane coincident with an upper table of the faceted large round gemstone. 
     
     
         5 . The brilliant cut gemstone cluster according to  claim 4  wherein the triangular plate angle ranges from 30 to 50 degrees. 
     
     
         6 . The brilliant cut gemstone cluster according to  claim 17  wherein a stone facet angle ranging from 20 to 40 degrees is formed at an intersection between a plane coincident with a table facet of one of the plurality of small round stones and a plane coincident with an upper table belonging to the faceted large round gemstone. 
     
     
         7 . The brilliant cut gemstone cluster according to  claim 6  wherein the stone facet angle ranges from 30 to 40 degrees. 
     
     
         8 . The brilliant cut gemstone cluster according to  claim 1  wherein the faceted large round gemstone and plurality of small gemstones are selected from the group consisting of diamonds, sapphires, rubies, emeralds and zircons. 
     
     
         9 . The brilliant cut gemstone duster according to  claim 1  wherein the plurality of small round gemstones is 8 in number. 
     
     
         10 . (canceled) 
     
     
         11 . The brilliant cut gemstone cluster according to  claim 1  wherein the faceted large round gemstone and plurality of small round gemstones each have facets in number ranging from 16 to 120 facets. 
     
     
         12 . The brilliant cut gemstone cluster according to  claim 11  wherein a total number of facets for all gemstones together may range from 100 to 1200 facets. 
     
     
         13 . The brilliant cut gemstone duster according to  claim 1  wherein the small round gemstones have diameters relative to that of the faceted large round gemstone in a ratio of about 1:20 to about 1:2 in size. 
     
     
         14 . The brilliant cut gemstone cluster according to  claim 1  wherein the cluster setting supporting the gemstones is formed from a metal selected from the group consisting of silver, gold, platinum, palladium, tin, copper, zinc, nickel, iron and alloy combinations containing a majority of one or more of the aforementioned metals. 
     
     
         15 . The brilliant cut gemstone cluster according to  claim 1  wherein neither the faceted large round gemstone nor the plurality of small round gemstones are secured to the cluster setting by solder. 
     
     
         16 . A cluster setting comprising a central round cavity sized for receiving a faceted large round gemstone and a plurality of peripheral cavities surrounding the central round cavity with each peripheral cavity being smaller than the central cavity and sized for receiving one of a plurality of small round gemstones, each of the peripheral cavities being set at an angle relative to the central round cavity to allow each of the small round gemstones to simulate a crown angle of a brilliant cut stone, and setting bars flanking each of the peripheral cavities, the setting bars on an outward surface having a triangular plate with two elongated edges and a curved edge, and elongated facets with concave outward curvatures adjoining each of the two elongated edges of the triangular plate, the triangular plate and elongated facets being finished to reflect light. 
     
     
         17 . A brilliant cut gemstone cluster setting comprising:
 (i) a faceted large round gemstone;   (ii) a plurality of small round gemstones;   (iii) a duster setting having a central round cavity receiving the faceted large round gemstone and a plurality of peripheral cavities surrounding the central round cavity with each peripheral cavity being smaller than the central cavity and receiving one of the plurality of small round gemstones, the peripheral cavities each being set at an angle relative to the central round cavity to cause the small round gemstones to simulate a crown angle of a brilliant cut stone, the plurality of small round gemstones having portions overlapping the faceted large round gemstone and setting bars flanking each of the peripheral cavities, the setting bars on an outward surface having a triangular plate with two elongated edges and a curved edge, and elongated facets with concave outward curvatures adjoining each of the two elongated edges of the triangular plate, the triangular plate and elongated facets being finished to reflect light.   
     
     
         18 . The brilliant cut gemstone cluster according to  claim 1  further comprising a circular throne located within the central cavity to help seat the large round gemstone. 
     
     
         19 . The brilliant cut gemstone cluster according to  claim 17  further comprising a circular throne located within the central cavity to help seat the large round gemstone. 
     
     
         20 . The duster setting according to  claim 16  further comprising a circular throne located within the central cavity to help seat a large round gemstone.