Kate Middleton Saved Her Best NYC Look For Last

While we've spent most of the royal couple's trip to New York anticipating what Kate Middleton would wear next, we never expected the duchess would make our jaws drop like this. The glowing mama-to-be arrived at the St. Andrews 600th Anniversary Dinner wearing a gorgeous deep blue gown in an off-the-shoulder silhouette that we've definitely seen before. In fact, it was the third time the duchess wore her Jenny Packham dress, the first being the 100 Women in Hedge Funds dinner in October '13 and the second at the National Portrait Gallery.

But tonight, Kate had the very best accessory: a growing baby bump, which she showed off as she made her way up the stairs of the Met and gracefully toured the gala. Even her stunning drop diamond and emerald earrings couldn't compete with her natural glow. Keep reading to see how the duchess made her last night in NY one for the books. We'll certainly miss Kate making the city streets just a little bit brighter as the royal couple concludes this trip.