An Enviably Coveted Vern-Diamond

"Oh, my."The Enviably Coveted Vern-Diamond is one of the most valuable jewels in the game and the most valuable one sellable in the Diamond Complex.

Obtaining
The only possible way to obtain the Diamond is killing A.C. Katz in Malevolence scneario.

(A pretty hard one too, may I add.)

Usage
The Diamond isn't much useful for anything other than selling it (although it does fetch quite a good price). The only other thing it might be useful for is contributing it to the Dawnbreaker Project, but considering the value of this gem, I don't see why you'd want to do this.