These Sunglasses from Industry of All Nations are handmade (like, for real, HANDMADE) out of natural plant cellulose acetate by eyewear artisans in Ethiopia, have real mineral glass lenses (read: not plastic), and, they cost $130, which, for (literally) handmade cellulose glasses with real mineral glass lenses, is pretty damn good. Three styles are available.
For price and purchase info, visit Industry of All Nations.