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Khloe Kardashian, Hermes Birkin

Jesse Grant/WireImage

Countless stars hit the streets and the red carpet with fabulous designer handbags—everything from Hermès Birkins (à la Khloé Kardashian Odom) to Chanel stunners seen on the shoulders of Lauren Conrad and Olivia Palermo

But since we don't all have celeb bank accounts, finding a designer style for a good deal is a must. You just want to make sure you're buying the real thing, and not a fake.

How do you know? Hint: It's all about the details.

George Kotsiopoulos' guide will help you determine whether or not that monogram satchel you picked up at a local vintage store is 100 percent authentic, or if that cute leather clutch your best friend just purchased is legitimately designer, or a straight-up imposter.