Seems Like About an Inch an Hour
The loops are getting a bit smaller as I go along. There's no wiggle room between loops for the stones now, either. The other thing that seems to be going well is less wastage of wire; I'm 'eyeballing' the lengths and seem to have figured that out.
I'm using a rather soft 22 gauge "non-tarnish silver" from Artistic Wire, which makes it a bit easier to manipulate, but I'm not sure of its durability. The stones are 6mm round howlite and ~15x8mm amazonite rounded rectangles. This shot makes the stones look more blue than they actually are - they're a lovely pale sea-green color with white streaks.