system
Given the following post, respond as if you're commenting on Reddit:
human
Chemists: I ruined metal jewelry when I spilled iodine on it. Is there any way to remove the horrible tarnish?

I accidentally dropped an open bottle of iodine on my jewelry - mostly sterling but also silverplated and some gold plated. The items seem ruined. The only thing I can think of is sanding/polishing the top layer off, but it won't work. Any ideas?
gpt
Silver iodide is a pretty famous compound. It responds to light by breaking down to silver metal. For a long time this was how photographs were taken. 

Try putting your jewelry outside in full sun for a couple of hours. Burn it off. Dunking it in a tub of photographic fixer (sodium thiosulfate) should also work.