Add a "Gem Trader" NPC

[RIPnogarD]

A jeweler could also deal in rings and necklaces, (the non-magical kind).

[Semli]

Well, since a few people are probably hoarding gems in anticipation of this, I'd suggest implementing a few new types of gems for him to buy and leaving the current ones set to 12gp for a good while.

There are a couple of IG reasons to horde gems concerning things you can do with DM support.  I suppose one possible motivation for this is waiting for a new NPC merchant that hasn't been set up correctly, however.  I'd like to think that for the most part people are just hoarding these things because thats what their particular character would do.

[p00d33m]

I am gonna make my gnome geologist gem expert right now ... wait that should be a dwarf and the jeweler would be a gnome...