
Queen Alexandra of the United Kingdom adopted dog collar chokers, called collier de chien to cover a small scar on her neck. For state and formal occasions, though, she plastered herself from head to waist in necklaces, tiaras, ribbons, sashes, and brooches of pearls, diamonds, and other jewels. Her long strings of pearls became her signature look. 
Christian Dior disguised as "King of the Animals" at the Kings and Queens Ball in 1949


Dior Museum - Granville
May 13 to September 26, 2010
Because of its weight monarchs often choose to wear the Imperial State Crown in their private apartments on and off for a couple of hours on the morning of the State Opening of Parliament so they can get used to the weight and feel comfortable with it on. One courtier reported on the morning of a State Opening witnessing Queen Elizabeth II eating her breakfast and reading newspapers while wearing it.