I've done the first part of the free Haer'Dalis quest 'rescueing him from the mage) much earlier in this run. Now I'm trying to finish the quest but it seems I have, uh, misplaced the planar gem. After looking everywhere I thought "no big deal, I'll just console it in", but when talking to Haer'Dalis or the quest giver at the theater I don't have any dialog option to hand them the gem (just "no, I don't have it" or "no, I've sold it").
Any idea how to fix this problem? A GLOBAL variable to set maybe?