The Duchess of Cambridge looked trés chic for her first official engagement of the year as she stepped out to support a charity fundraiser held by the National Portrait Gallery in London last night. Kate, known for her savvy ways wore the same midnight blue Jenny Packham gown just a few months before for a gala at Kensington Palace but this time added some serious jewels to her ensemble. The theme for the evening was 'black tie with a hint a sparkle' and she certainly lived up to it wearing a priceless diamond necklace loaned to her by the queen, a gift that was given to her on her wedding day in 1947 by then King of India. Always the picture of sophistication and elegance, Kate never seems to step out in the wrong gown. If you too want a slice of the perfectly groomed cake then look no further than these princess worthy gowns. This seductive Lipstick Boutique Reena Dress now in the sale for £50 is a sultry take on Kate's charming style with thigh-high split and off the shoulder style. The strapless Ruby Ray Embellished Maxi Dress, £240 with flowing skirt and beautifully embellished waist detailing is just the ticket and already has some sparkle. For a truly princess-ready gown this Elliot Claire Lynn Sparkly Evening Dress, £325.00, has all the properties a Duchess friendly dress should have with an intricately detailed design and flattering style. Lipstick Boutique Reena Dress in Navy, was £80.00, now £50.00, Ruby Ray Embellished Maxi Dress in Navy, £240, Elliot Claire Lynn Sparkly Evening Dress in Black/Blue, £325.00 Now all you need to finish the outfit is some trusty black courts a la Kate and a diamond necklace! Failing the latter we have plenty of jewels that sparkle just as brightly: