Louis Mariette is a celebrated UK milliner and is the man behind the world's most expensive hat: The Chapeau d'Amour, valued at £1.5 million. He has just launched a diffusion range of diamante encrusted headpieces and accessories called Bejewelled; he was listed in i-D as one of the 250 top creatives; has collaborated on catwalk shows; received an award from The Tanzanite Foundation; and is regularly making new and exciting bespoke pieces for celebrities and fashion magazines across the globe.