Board Thread:General Discussion/@comment-31.52.12.104-20130824185622/@comment-6881629-20130825100016

Reload a older save if you can as you need at least one of the gems from the Reaver Lord in Kagrumez otherwise you won't have enought for the quest (unless your PC so you can spawn more).

I have heard the gem in Fahlbtharz may respawn but i wouldn't count on it.