Their is always a buyer.. Just got to look in the right places.
I can't seem to farm enough Saronite to keep up with the demand. I'll farm 65 stacks or so overnight and list it in the morning. Everything will be sold before the listing is up. I cut the gems I find (but vendor the green ones), and sell the eternals individually. Maybe I've just pushed everyone out of the market, seems like I'm the only one selling the stuff in bulk.
you're selling sar ore more than 13g/stack, as you can smelt and sell to vendor and get 25g/stack (bars) which = 12.5g / stack for ore