Acquiring the three gems to Centaur island, Quolinara Elven forests, and the lohsurn Lake north of Gahlen 
The following gems will allow you flight passage upon the golden eagle at the peak of the Jemeleon mountains. This will not tell you how to get there.
Inside of Jemeleon, visit the dwarf, Norf, he has a crush, and he wants a half dozen nymph roses. If you bring those to him, he will bestow you with these gems.