"It's the prettiest things," Kate assures him, eyes awed. It doesn't matter that it was given to him, he's still decided to give it to her, and you wrest what meaning you can in this kind of situation. And it's true. It's not gaudy, not grossly heavy or bleeding noveau riche. It's elegant and beautiful and nothing like anyone would have ever, ever given her in her original world.

"Lumin crystal," she repeats, glancing from the stone back to his face. "What... what might it do? In your world?"