diadem

dia + dem; dia + gem; dia is related to circle; Circle of Gems is what a crown has

diadem sounds very close to diamond....and a crown is made up of diamonds...

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DIAna had DEM(DIA+DEM) i.e CROWN

dia-dem think it as diamond-gem and gems & diamonds r placed in crowns

Diadem - Think it as Di (The- we always use for great things)+ Madam - Great woman wear crown

let DEM DIE i just wanna become a king :-"

Princess Diana had a diamond dia (circle) of gem(dem) a crown