Counterfeiters often mess up the logo placement, font, and spelling. A fake Gucci bag might have the wrong double-G spacing, and a fake Louis Vuitton might have its monogram slightly off.

Narrator: Scroll through any fashionable millennial's social media and chances are you'll see Gucci's iconic double-G logo, whether on belts, bags, or even capes. Gucci is pretty much everywhere ...