Fall gala season is in full swing. Summer sun dresses are no longer appropriate for wedding weekends. Holiday parties are right around the corner. All of this adds up to one thing: it's time to invest in a new black-tie look. The best fancy-party looks are always chic, elegant and subtly sexy.

For me, it doesn't get more glam that a long black dress with a plunging neckline, strappy, geometric heels and gold accessories, like these picks from BCBG. Find all of these items and more at Copley Place!

One-stop shopping: BCBG





All items, BCBG.

1. Magdalena Draped Jersey dress
2. Pave Pyramid Bracelet
3. Lulu Square Stone Clutch
4. Estie High Heel Sandal (It may be approaching winter, but, let's be serious, when you're wearing black tie, you're probably not standing around outdoors, so sandals are still appropriate).
5. Pave Cage Ring

For more fall outfit ideas, check out What to Wear With Boyfriend Jeans and  One-Stop-Shopping: Casual Weekend Outfit from J. Crew.

Kaitlin Madden blogs at Lux & Concord. Follow her on Twitter at @kaitmadden and @luxandconcord.