Diamonds are forever... and apparently, so are Paris and Nicole.

The "Simple Life" twosome was spotted doing a photo shoot at the De Beers jewelry store in Beverly Hills last night, dressing up for the cameras in fashionable trenchcoats and bug-eyed sunglasses, looking like a couple of ******-off Swiss spies. The stars were playful and friendly while cameras were on, but when the shoot was over, the two said their goodbyes and went made their getaway to the Hollywood alps.

While Paris stopped to sign a few autographs on her way out, Richie and boyfriend Joel Madden weren't as fan-friendly, making a mad dash for their car and almost running over a few photogs as they sped away. At least they drove on the right side of the road!

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