Kate Middleton’s Blue Shift and Diamond Necklace: All the Details!

Courtesy Photo (2); Tim Rooke/Rex / Rex USACourtesy Photo (2); Tim Rooke/Rex / Rex USAIt looks like Catherine, Duchess of Cambridge went shopping this week! The royal attended a special Olympic Games exhibition at London's National Portrait Gallery wearing a new look--Stella McCartney's cobalt blue shift. We love the symbolism of choosing this British designer, the same person behind the Great Britain's Olympic uniforms. The Duchess paired the dress with a Cartier trinity necklace, which features pink, yellow, and white gold dotted with diamonds. While you can shop the dress for $658 at matches.com, the necklace is a little steeper, available at cartier.com for $76,895. (Perhaps it was a 30th birthday gift?) Tell us: Do you like the look?

Plus, see more of Kate's looks in our gallery!

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--Caitlin Petreycik