I ended up wearing a long and gorgeous eggplant colored gown I found at a Macy's the day of. After observing the other ladies in attendance, dressing for a night at the opera is like a classy and sophisticated upgrade from prom and rapidly approaching an awards' red carpet. Really fun for those of us who don't get to dress up much!
Anyway, here is a sleek and simple look that is more than opera appropriate.
***NOTE FOR YOUR DATE: Don't want to wear a tux? Well, a black suit, white button down shirt and white tie will do just fine. The illusion of a tux without the fuss!