I love strange stones, this one was collected on the coast and it is a hagstone in progress, nature was digging its way out, creating a window in it...
Set with an open back bezel and nickel silver prongs on a copper and nickel silver rustic armature that has two perforation on the top bar to add a thin chain, a small beads strand, textiles, even leather, etc. to create a great wild look.
It measures approx. 79 x 69 x 19mm.