Solid gold: how yellow became the colour of the season Fashion The Guardian Betsy & Adam Women's Cap Sleeve High Neck Solid Gown Belk Sienna Gold Dresses Warm & Radiant Gowns Lady Black Tie Franoise Hardy in a Paco Rabanne dress, 1968. Said to be the most expensive dress in the world at the time, it was made of solid gold and set with numerous diamonds ( WornOnTV: Kyle's gold metallic cut scene dress on The Real Housewives of Beverly Hills Kyle Richards Clothes and Wardrobe from TV