Ok, after looking into this again, the way it is written works like this:
-You may turn in a gem of persuasion for a giant's gem of persuasion.
-You may turn in a velium war wolf choker for a blood wolf harness.
-You may turn in a giants gem of persuasion AND a blood wolf harness for a Giants Harness of Control.
I believe this info was gathered from
https://www.project1999.com/forums/s...2&postcount=92. If this isn't correct, need more information.