[DonCorazon]

Thanks for the input.

I have only traded items for gems a couple of times and those were in noob games. I always admitted to not really knowing what was fair and being open to alternative offers, but never had a trade rejected..

Just now getting to the point where I am starting to leave the "noob" zone, so now appreciate the value of gems, which is why I started to wonder if those prices might be high.

I do think trading at cost is somewhat cheap since you are losing some research but I guess if you need the gems in question then it is a good deal. Otherwise, cost plus a gem or two sounds reasonable in most cases.