Thorfinn didn't own much in the way of jewelry beyond the simple wedding band Hannah gave him that he never took off. Even though she felt uncomfortable going through his personal possessions without permission, Hermione didn't believe she had a choice. She had to dig through the drawer in his nightstand to find an old gold ring with the Rowle family crest she'd seen him wear before. The moment the ring had a bluish glow thanks to the spell, she Disapparated out of his bedroom straight to his current location.