This quest was marked obsolete by Blizzard and cannot be obtained or completed.
I gladly give you this necklace, mighty <class>. You have done me an invaluable service, and for that I thank you. Wear it with pride, and make sure you mention loudly and repeatedly who made it for you!
Also, if you could toss in the fact that it really isn't cursed, that would be great.
You will receive:
(or 48 if completed at level 90)