Tricky sit start with a low left Gaston (same start hold as for sapphire) and high right crimp/pinch flake hold, move up and over for a nice mantle with a good left heel.
Starting on the left arête and small pocket, traverse the lip rightwards doing some tricky moves around the next arête, using holds on the lip and face to finish around the back right arête to finish up the easy slab.