I've had this in my collection for a couple of months now, but I never quite got around to posting about it.
This is a Legion flight ring, as seen in numerous issues of tons of comics from the DC universe. A ring similar to this has also shown up in a bunch of episodes of Smallville, including the recent season 10 episode with Booster Gold.
Overall, a very well made ring, with a great finish. Sadly, it's slightly too big for my dainty fingers. But then, I probably wouldn't really get a lot of street wear out of this, so not a big negative really. I think this will make for a great display piece, as it's highly recognizable, and quite shiny! Everyone likes shiny things!