Mines of Deeptreasure
The Deeptreasure Mining Company consistently mines the largest, most beautiful gems sold in the [[Eleder] markets. Their secret is a platoon of xorns who glide through the Bandu Hills searching out the tastiest morsels, then spitting them back up at Deeptreasure headquarters in a hidden compound just inside the hills themselves. The mine bosses promise the xorns a way home if they bring back more gems than they eat. The exact price, however, always remains tantalizingly vague.
Sources: Pathfinder Chronicles Campaign Guide