"I'm guessing that when you say 'artifact', you mean more gems." Kloranth says, munching on some corn. He swallows before continuing. "Well, I know of another place where there may be a gem... at least, rumors say it's there, and I don't know how much has changed between then and now."
"But anyway... this gem that I know of. Supposedly, it is with a dragon on the northern tip of the Lost Isle*. In the text that I read in which I found out about it, it was referred to as Trinariklanth's Tooth. I don't recommend going after it, though, considering that it is a dragon we're talking about, and I don't know anything beyond that it is a dragon that holds it."
*The Lost Isle is a small island near the continent you are currently on. When the continent sank long ago, the Lost Isle - then a part of the continent itself - was the only portion that didn't sink; when the continent was raised again, the Lost Isle remained seperate. It is mainly uninhabitable.