The largest pristine gem in the universe goes by the name "Eye of Infinity". It belonged to the Boltaire Museum. Klunk was behind it's theft. Klunk had planned to use it to power a laser that would, in one single shot would eliminate every single planet in the Solona Galaxy. At the end of the game, Captain Qwark had transported himself to a sattelite where the Eye of Infinity was placed, and the laser was about go into action. Qwark picked up the precious Eye and transported back. He handed the Eye to Clank, and Clank placed the eye where it was supposed to be (Boltaire Museum).
The precious Eye of Infinty