Sit start to the wave, left hand under the roof compressing against right hand on the arete.  You actually start sitting on the little rock at the base of it to the right.  Adds some good squeezing into the wave and is about a grade harder.  A variation starting matched in underclings to the left is also possible.

The Wave (Sit Start)

The Jewel (Low Start)

The Jewel

The Wave

Start crouched under the roof with your left hand on an incut edge and right hand on the nose / arete. Go left to the seam and top out straight up (or out left). The guidebook

says

top out left via the seam, though the line drawn in the picture goes straight up. Don't think your choice will affect the difficulty.

Starting with your right hand lower on the arete is also possible. I watched a friend do this variation, though I never tried.

This is the low start to the Jewel (V3) on the Gemstone boulder. Sit start under the roof with the good 2-finger pocket on the lip. Work your way through the bulge without dabbing, and finish on the Jewel. Could be 4 stars without the dabbiness. Thin pads help.

From the guidebook "start standing using an incut right-facing sidepull and a low left hand. Top out straight up." I started with my left hand around the arete since I wasn't exactly sure which "low left hand" the guidebook was referring to. I'm pretty tall, and the move to the lip felt reachy.

Description

Location

Routes in The Gemstone Boulder