Kate Middleton's after-hours wardrobe continually impresses us. HRH's liking for full length, glamorous gowns in simple and elegant silhouettes means she never puts a foot wrong when it comes to black tie events. Kate stepped out last night with Prince William for a dinner in aid of the National Memorial Arboretum Appeal at St James's Palace in London, opting for an asymmetrical number from her current designer of choice Jenny Packham. Whilst we appreciate the Grecian appeal of this glam gown, it's really Kate's Art Deco diamond jewellery that caught our eye. The modern-yet-romantic drop earrings and coordinating bracelet set off her oyster hued dress perfectly. Don't have a stash of royal jewels to raid like Kate? Don't worry! We've found some beautiful bling that echo the Duchess' dazzlers via ShopStyle!