A tiara (from Persian tara borrowed by Latin as 'tiara') is a form of crown. The word "tiara" refers to a high crown, often with the shape of a cylinder narrowed at its top, made of fabric or leather, and richly ornamented. It was used by the kings and emperors of some ancient peoples in Mesopotamia. In modern times, however, a tiara is generally a semi-circular band, often metal-made and decorated with jewels. It is worn by women around their head or on the forehead. Tiaras are a nice way to put the royal touch on your fantastic affair.