Encouraging...?

"Does that mean no arbitrage?" asks the Crown delegate tentatively. Did the inevitable pick ones that are particularly small or large or clear or discoloured? "Would it be useful if we labeled how much each diamond costs, locally? Or is that—implicit arbitrage—"

"I think this is arbitrage. Diamonds are worth very little here, so amounts that would command the wealth of sovereigns on Golarion are available at all. No one on Golarion would buy books this way."

No one in their world would buy books like this either!

"It would be useful for procurement if we could get specifications of how size and color affects price