The position of the First Lady is not an elected one and carries only ceremonial duties. The role of the First Lady has evolved over the centuries. 

She is, first and foremost, the hostess of the White House. 

Over the years individual first ladies have held influence in a range of sectors, from fashion to public opinion on policy. 

They set trends; we are eager to see what designers they wear, and most importantly for us, what jewellery they favour.....