A TIARA is a type of crowned headwear that is traditionally worn by royalty and other high-ranking individuals. It is usually made of precious metals and stones, and is often adorned with jewels. The word 'TIARA' comes from the Greek word for 'DIADEM', which was a type of crown worn by ancient Greek kings. TIARA styles vary greatly, but they all share the common feature of a band of metal or fabric that encircles the head.