I was nervous about purchasing this to go with wedding stuff as it didn't specify what metal it was made of and I'm allergic to nickle. I wore it for about 4 hours straight when it first arrived to test it (figuring that would leave me plenty of time to get any reaction/rash to go away before the big day if I needed to.) It looked great and I had no reaction. So whatever it is made of, it doesn't include nickle on parts that contact the skin at least. Great purchase!