An exceptionally saturated, blue green/teal piece of alluvial tourmaline from Mozambique. This piece is copper-bearing, like its Brazilian Paraíba counterpart.

This could cut a large pear shaped stone with a single, non-surface reaching fracture towards the point, which has been delineated in the photo by a faint black line.

One could also cut a round or oval gem with no fracture by sawing it on the line, while cutting a secondary gem from the other portion.

It has a favorable ratio for achieving 30% yield with a round or oval shape, or 35% yield as an included pear.