My silver jewelry has turned dark gray/black.any good cleaner?

RubiaBonita asked: I have a lot of Tiffany’s jewelry that is so dark now!! Any good inexpensive cleaner out there I can buy from a target, walmart, etc?

How can I get tarnish off my sterling silver ring?

caitlinelise10 asked: I have been going to the pool every few days and I always forget to take my ring off. The first few times, the tarnish washed off with my jewelry cleaner but now it won’t. How can I get it off??? Thanks!