[caption id="attachment_735" align="aligncenter" width="490" caption="rough tourmaline fine silver pendant"][/caption] Completion achieved!  I finished this piece, after oxidizing it and adding some touches of 24k gold.  It was a major process, and used almost a complete package of PMC+, 45 grams.  My calculations were almost exact, not quite as planned, but close enough.  The stone fits snugly in the opening.  I may alter future designs, in that, it was very hard making the opening exactly fit to the stone, and seeing that this stone is odd shaped, well, difficult!