Shape Memory Alloy Mounting Collet With Grooved Gemstone

Abstract

A jewelry article comprising: a gemstone and a shape memory alloy collet. The gemstone comprises a girdle dividing the gemstone into a pavilion and a crown having a table surface; and a continuous groove located in the pavilion and parallel to the girdle, the continuous groove has a first surface and a second surface, the first surface is substantially parallel to the table surface, the first surface and the second surface of the groove form a first angle. The shape memory alloy collet has a mounting rim, the mounting rim has an inner surface and a top surface defining an opening of the shape memory alloy collet, the inner surface and the top surface form a second angle, the second angle corresponds substantially to the first angle, and a profile of the mounting rim corresponds substantially to a profile of the continuous groove.

What is claimed is: 
     
         1 . A jewelry article comprising:
 a gemstone comprising:
 a girdle dividing the gemstone into a pavilion and a crown having a table surface; and 
 a continuous groove located in the pavilion and parallel to the girdle, the continuous groove having a first surface and a second surface, the first surface being substantially parallel to the table surface, the first surface and the second surface of the groove forming a first angle; and 
   a shape memory alloy collet having a mounting rim, the mounting rim having an inner surface and a top surface defining an opening of the shape memory alloy collet, the inner surface and the top surface forming a second angle,   wherein the second angle corresponds substantially to the first angle, and a profile of the mounting rim corresponds substantially to a profile of the continuous groove.   
     
     
         2 . The jewelry article as claimed in  claim 1 , wherein the gemstone has a round shape. 
     
     
         3 . The jewelry article as claimed in  claim 1 , wherein the shape memory alloy collet is a titanium alloy collet. 
     
     
         4 . The jewelry article as claimed in  claim 1 , wherein the first angle is between 75 and 85 degrees. 
     
     
         5 . The jewelry article as claimed in  claim 1 , wherein the first angle is 80 degrees. 
     
     
         6 . The jewelry article as claimed in  claim 1 , wherein the shape memory alloy collet has a plurality of holes for cleaning an interior of the shape memory alloy collet and the gemstone. 
     
     
         7 . The jewelry article as claimed in  claim 1 , wherein the gemstone is selected from the group consisting of diamond, ruby, sapphire and alexandrite. 
     
     
         8 . The jewelry article as claimed in  claim 2 , wherein a diameter of the round shape gemstone is at least 10% greater than the opening of the shape memory alloy collet. 
     
     
         9 . The jewelry article as claimed in  claim 1 , wherein a wall of the shape memory alloy collet is thicker at a bottom end. 
     
     
         10 . The jewelry article as claimed in  claim 1 , wherein a diameter of the shape memory alloy collet at a bottom end is less than at the mounting rim. 
     
     
         11 . A gemstone comprising:
 a girdle dividing the gemstone into a pavilion and a crown having a table surface; and   a continuous groove located in the pavilion and parallel to the girdle, the continuous groove having a first surface and a second surface, the first surface being substantially parallel to the table surface, the first surface and the second surface of the groove forming a first angle;   wherein the first angle corresponds substantially to a second angle formed by an inner surface and a top surface of a mounting rim of a shape memory alloy collet, the inner surface and the top surface defining an opening of the shape memory alloy collet;   wherein a profile of the mounting rim corresponds substantially to a profile of the continuous groove.   
     
     
         12 . The gemstone as claimed in  claim 11 , wherein the gemstone has a round shape. 
     
     
         13 . The gemstone as claimed in  claim 11 , wherein the shape memory alloy collet is a titanium alloy collet. 
     
     
         14 . The gemstone as claimed in  claim 11 , wherein the first angle is between 75 and 85 degrees. 
     
     
         15 . The gemstone as claimed in  claim 11 , wherein the first angle is 80 degrees. 
     
     
         16 . The gemstone as claimed in  claim 11 , wherein the gemstone is selected from the group consisting of diamond, ruby, sapphire and alexandrite. 
     
     
         17 . The gemstone as claimed in  claim 12 , wherein a diameter of the round shape gemstone is at least 10% greater than the opening of the shape memory alloy collet. 
     
     
         18 . A shape memory alloy collet comprising:
 a mounting rim, the mounting rim having an inner surface and a top surface defining an opening of the shape memory alloy collet, the inner surface and the top surface forming a second angle, the second angle corresponding substantially to a first angle formed by a first surface and a second surface of a continuous groove located in a pavilion and parallel to a girdle of a gemstone, the gemstone having a crown including a table surface;   wherein the first surface is substantially parallel to the table surface, and a profile of the mounting rim corresponds substantially to a profile of the continuous groove.   
     
     
         19 . The shape memory alloy collet as claimed in  claim 18 , wherein the gemstone has a round shape. 
     
     
         20 . The shape memory alloy collet as claimed in  claim 18 , wherein the shape memory alloy collet is a titanium alloy collet.