Prom under $100: Another Fashion Fallout Formula!

One Mark & James by Badgley Mischka Cleopatra draped dress ($75 from Rent the Runway)

+ One Cinched Clutch in black ($5.94 from Target)

+ One Pair Waltz Studded Sandals ($18.80 from Forever 21)

= Laid-back Glam for $99.74!

This is a great ensemble for a few reasons. The dress is so beautifully ornate, you really don't need any additional jewelry. Plus, because of the Greco-Roman influence, you can wear flats (handy if you feel uncomfortable in heels, or if you happen to be taller than your date).