If you think tiaras are one designer trend you'd be wrong; Chameleon Michelle Jank also showed inspired diamond and crystal tiaras for Fall 08 at Australian Fashion Week.
And of course Roberto Cavalli's beauty queen crowns on Lily Donaldson and Ali Stephens in Milan can't be ignored...

The tiara is a natural progression of the embellished headband trend and what girl doesn't want to be a princess every once in a while? While I think the Cavalli approach might be a little bit too much for, um, anyone who isn't actual royalty, Erin Fetherston's delicate flower designs can be worn as gracefully as any headband. But remember tiaras work best when paired with jeans and flats...no one wants a high maintenance princess on their hands!
