@jdwaid I'm glad I'm not the only one this is happened to even though the consensus from the replies is it should take a long time to tarnish/oxidize like this. I also don't live next to the ocean. My first Good Art purchase was a poplock necklace and I wear that every day for 2 months now and still looks shiny and new.
@Go-For-Chill I like the shiny look of it, and was pretty surprised how dark it got just sitting in the bag after a week. I guess I'll have to polish it to keep it looking new. Is there a specific polishing cloth you recommend to keep it shiny? Also is there any concern in having to continuously polish it to keep it new looking? I'm new to jewelry in general and haven't really worn any except for the poplock necklace I bought.
@Anesthetist I bought this from Nordstrom. Pretty surprised I found one there in my size.