Victoria Beckham was among the stylish partiers out in London last night to honor 10 years in business for Net-A-Porter, which sells her Victoria Beckham Collection. Posh is back in London after celebrating a milestone of her own — she and David celebrated their 11th wedding anniversary with a weekend in the South of France. She traded her colorful Marc Jacobs dress for a short Miu Miu number yesterday, and made the rounds chatting with the company's founder Natalie Massenet and good friend and design accomplice Roland Mouret.

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