I have a teeeeensy bit of an obsession with raw stones and crystals at the moment (which may or may not be a result of hours of my childhood spent wishing I was a part of Captain Planet's Planetrees) and this only threw feul on the fire. Here are the results of my recent "researching"...
Nubambu via Etsy.com
Billy Bride Jewellery...INCREDIBLE!
Estelle Deve for Arnsdorf. Available from Bam & Juju.