Jewel bearing a gemstone

Abstract

A jewel bearing a gemstone, the jewel comprising a body and a holder on which the gemstone is fixed, the holder being shaped such that the gemstone is uncovered at least within a virtual infinite cylinder, drawn on an axis of symmetry of the gemstone, characterised in that the holder is attached to the body in a fixed position, the body being shaped such that it is completely located outside the virtual infinite cylinder.

1 . A jewel bearing a gemstone, the jewel comprising a body and a holder on which the gemstone is fixed, the holder being shaped such that the gemstone is uncovered at least within a virtual infinite cylinder, drawn on an axis of symmetry of the gemstone, characterised in that the holder is attached to the body in a fixed position, the body being shaped such that it is completely located outside the virtual infinite cylinder.  
     
     
         2 . A jewel according to  claim 1 , characterised in that the body mainly extends in a plane from which the holder and the gemstone are laterally disposed.  
     
     
         3 . A jewel according to  claim 2 , characterised in that the holder and the body are integral parts of a finger ring.  
     
     
         4 . A jewel according to  claim 1 , characterised in that the holder has a protective portion extending alongside the virtual infinite cylinder.  
     
     
         5 . A jewel according to  claim 1 , characterised in that a protective cap is provided on the holder, the protective cap being movable between a first position in which the cap partly covers the gemstone and a second position in which the cap is removed from the gemstone and is located outside the virtual infinite cylinder.  
     
     
         6 . A jewel according to  claim 1 , characterised in that the gemstone is a hearts and arrows diamond.  
     
     
         7 . A jewel according to  claim 6 , characterised in that virtual infinite cylinder has a diameter of at least ⅘ of that of the diamond.  
     
     
         8 . A jewel bearing a gemstone, the jewel comprising a holder on which the gemstone is fixed, the holder being shaped such that the gemstone is uncovered at least within a virtual infinite cylinder, drawn on an axis of symmetry of the gemstone, characterised in that the jewel is convertible between 
 a wearing condition, in which the holder maintains the gemstone in a fixed position with respect to the body, and    an inspecting condition in which the body is completely located outside the virtual infinite cylinder.    
     
     
         9 . A jewel according to  claim 8 , characterised in that the holder is removably fixed on the body.  
     
     
         10 . A jewel according to  claim 8 , characterised in that the holder is hingedly clamped in between two clamping portions of the body and that the holder is movable between a wearing position and an inspecting position in which the body is completely located outside the virtual infinite cylinder, the movement of the holder between the wearing position and the inspecting position requiring application of a given amount of force.  
     
     
         11 . A Jewel according to  claim 8 , characterised in that the holder has a protective portion extending alongside the virtual infinite cylinder.  
     
     
         12 . A jewel according to  claim 8 , characterised in that a protective cap is provided on the holder, the protective cap being movable between a first position in which the cap partly covers the gemstone and a second position in which the cap is removed from the gemstone and is located outside the virtual infinite cylinder.  
     
     
         13 . A jewel according to  claim 8 , characterised in that the gemstone is a hearts and arrows diamond.  
     
     
         14 . A jewel according to  claim 13 , characterised in that virtual infinite cylinder has a diameter of at least ⅘ of that of the diamond.  
     
     
         15 . A jewel comprising a ring-shaped element having a top part provided with a housing for holding a gemstone, the housing having an area within which the ring-shaped element has a split forming first and second opposing edges, the jewel further comprising a pivotable lever for opening and closing the housing, the lever being mounted on a pivot pin at the first opposing edge and being movable between a closed position in which a gemstone can be firmly held in the housing and an open position in which the gemstone can be removed from the housing, characterised in that the lever comprises a cam at the pivot pin, the cam having a cam surface in contact with the second opposing edge, the cam surface being substantially flush with the first opposing edge in the closed position and protruding from the first opposing edge in the open position.  
     
     
         16 . A jewel according to  claim 15 , characterised in that the housing comprises a number of hooked members for holding the gemstone.  
     
     
         17 . A jewel according to  claim 15 , characterised in that the housing is adapted for holding a diamond.