If you want to cosplay as the Pope or something it would be good. It is way too big and gaudy for normal display though. Most people will see it and think "trying too hard", or just assume it's fake (which will make them think even worse things).
If you are stinking rich, and wear a lot of other really big, gaudy jewellery, it will blend in a little better and not seem as ostentatious. Wearing that to a strip mall would look ridiculous though.