I  call this bolo tie "Pale Rider," given the lighter than usual color of the stone. Before I cut the stone, I wasn't sure I'd like it but I loved the way the dark matrix sets off the muted color. Very unusual and very hapoy with how it turned out.. 
I mounted the stone in a silver bezel with a twisted rope accent on a brushed heavy silver backing and then mounted it all on a heavily textured silver piece. 
The bolo cords are woven black leather and the cord tips are silver-colored.    
Overall size is approximately 1-1/2" tall by 1-1/4" wide.
This is a one-of-a-kind piece that will make a beautiful addition to your causal or dress ensemble.