How much gold does it take to unlock all crafting recipes?
I appologize if this has already been covered, but I couldn't find the information anywhere.
I just made it to Nightmare on my Wizard, and noticed that I needed to collect crafting pages to level up the Jewel Crafter Covetious Shen. Are there pages in each difficulty, or will I be able to finish leveling him up in Nightmare?
Also, if each difficulty setting has its own pages, can you buy them off the AH to gain access to the higher level gems early on?