Hats! Jewels! Dresses! Tiaras!

State visits are as much about what everyone is wearing as they are about what they’re saying and doing.

It is an exercise in fashion diplomacy - and there has been plenty of it on display as US President Donald Trump and his wife Melania visit the UK.

From the First Lady's hat and striking yellow banquet dress, to the Princess of Wales's golden gown and historic tiara, here are some of the most eye-catching looks.

At Wednesday night's formal state banquet, Melania went bold.