Bead made of Polar Jade "Nephrite".
FINISHED BEAD SIZE 2.11 inch 53.5 mm long .48 inch 12.1 mm in diameter

Rough piece as purchased cut in half

Each piece a bit over two inches long 16mmX16mm

Piece in hand to give an idea of size.

5mm hole drilled dead center.

Both sides of rough cut bi-cone, note witness marks showing how well centered the hole is.

Hole end after cutting rough cut bi-cone

Shaped to taper and radius cut bi-cone shape.
When I had the bead to this point I studied it for awhile and thought about cutting a small radius in the center. I took all the measurements and drew it in Rhino5 3D software
I then made the cut for the radius on the bead and saw that I thought it would work out very well all of this without having to make a single cut in the actual bead.


Thought the center radius looked great so back to work.

Center radius cut and polished.

Piece finished on top of a mirror.

Finished bead in fingers to show size.

Funny what you can find hiding inside a piece of stone ................ Time to start looking!!
All my best ..... Danny
The thickness of the of the material on the outer edge is .80 mm