Oh. Uh… Probably not. I think it just looks like silver. It's probably something else.

The note says it will lead us to the next clue… But how it'll do that is beyond me. Hm…

*SIVELOS inspects the key. As stated prior, it is made of silver with a circular diamond in its ring. The diamond itself is strange… It looks scratched, but on the inside as opposed to its surface. The strange etchings just seem like nonsense to you.*