Multi-color gemstone coating technology

Abstract

The present invention discloses a gemstone comprising a table, a crown and a pavilion. Certain areas of the surfaces of the gemstone are coated with at least one layer of multi-color thin film comprising at least two (2) types of metallic compounds. A layer of DLC protective coating is deposited on top of the multi-color thin film. The said multi-color thin film can be deposited on the table of the gemstone, the table and crown of the gemstone, on certain areas of the pavilion, or on all surfaces of the gemstone. The deposition of the multi-color thin film can be achieved through several low temperature vapor-coating techniques such as sputtering, chemical vapor deposition (CVD) and physical vapor deposition (PVD), ARC Source deposition, PLD, and MED.

What is claimed is: 
     
         1 . A gemstone comprising:
 a table,   a crown and   a pavilion;   wherein at least one layer of multi-color thin film comprising at least two (2) types of metallic compounds is deposited on the table of the gemstone.   
     
     
         2 . The gemstone as recited in  claim 1 , wherein said multi-color thin film is deposited through Sputtering. 
     
     
         3 . The gemstone as recited in  claim 1 , wherein said multi-color thin film is deposited through chemical vapor deposition. 
     
     
         4 . The gemstone as recited in  claim 1 , wherein said multi-color thin film is deposited through ARC source deposition 
     
     
         5 . The gemstone as recited in  claim 1 , wherein said multi-color thin film is deposited through pulsed laser deposition. 
     
     
         6 . The gemstone as recited in  claim 1 , wherein at least one layer of DLC is deposited on top of the multi-color thin film. 
     
     
         7 . A gemstone comprising:
 a table,   a crown and   a pavilion;   wherein at least one layer of multi-color thin film comprising at least two (2) types of metallic compounds is deposited on the table and crown of the gemstone.   
     
     
         8 . The gemstone as recited in  claim 7 , wherein said multi-color thin film is deposited through Sputtering. 
     
     
         9 . The gemstone as recited in  claim 7 , wherein said multi-color thin film is deposited through chemical vapor deposition. 
     
     
         10 . The gemstone as recited in  claim 7 , wherein said multi-color thin film is deposited through ARC source deposition 
     
     
         11 . The gemstone as recited in  claim 7 , wherein said multi-color thin film is deposited through pulsed laser deposition. 
     
     
         12 . The gemstone as recited in  claim 7 , wherein at least one layer of DLC is deposited on top of the multi-color thin film. 
     
     
         13 . A gemstone comprising:
 a table,   a crown and   a pavilion;   wherein at leas one layer of multi-color thin film comprising at least two (2) types of metallic compounds is deposited on the pavilion of the gemstone.   
     
     
         14 . The gemstone as recited in  claim 13 , wherein said multi-color thin film is deposited through Sputtering. 
     
     
         15 . The gemstone as recited in  claim 13 , wherein said multi-color thin film is deposited through chemical vapor deposition. 
     
     
         16 . The gemstone as recited in  claim 13 , wherein said multi-color thin film is deposited through ARC source deposition 
     
     
         17 . The gemstone as recited in  claim 13 , wherein said multi-color thin film is deposited through pulsed laser deposition. 
     
     
         18 . The gemstone as recited in  claim 13 , wherein said multi-color thin film is deposited only on certain areas of the pavilions. 
     
     
         19 . The gemstone as recited in  claim 13 , wherein at least one layer of DLC is deposited on top of the multi-color thin film.