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20 Prom Dresses Under $100

Purchasing the perfect prom dress need not require three months of saving your babysitting money and allowance. (Or making one out of duct tape. But we think it's really cool if you do!) Online, there are plenty of affordable options for your big night that look amazing AND leave ample budget for accessories, hair, nails and dinner. (Well...you can always stick your date with the bill on that last one. Your call.)

Click through the slideshow below to shop our 20 favorite options, all under $100.

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Jaws will drop when you arrive in this glittering gown.

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Pair this with deep red lips, soft finger waves and a killer statement necklace.

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What Gwen Stefani would wear to prom.

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A shimmery gold bodice and waist-cinching skirt are sexy, but not overtly so.

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Indulge your inner Barbie-loving, glitter-crazed girly-girl and go for the fairy princess dress.

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Here's one you can definitely recycle for a mid-summer wedding. (Or two!)

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You'll be twinkling all night in this gold sequined mini.

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The Great Gatsby goes to a prom.

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Pays homage to Kate Hudson's stunning yellow dress in How to Lose a Guy in Ten Days. (Which, it pains us to say, actually came out when we went to prom.)

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Since this lovely black piece is so understated, you can really go nuts with your accessories. (Hello, neon pumps!)

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Silver will look stately and ladylike in a crowd of candy-colored ensembles.

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Taylor Swift on the red carpet meets Natalie Portman in Black Swan. So basically...every teenage girl's dream.

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The quintessential party dress: pick this one if you plan on dancing all night.

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Channel a Grecian goddess in this delicate gown of cascading chiffon layers.

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The bright graphic print will stand out in your photographs.

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When the formal event is over, this one is surprisingly wearable during the day.

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So pretty that it's actually called the "Prettiest of All."  Sold.

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