Readers' Ultimate Tiara Collection: The Last Vote

We've been voting on different categories of tiaras all year - broad groups, ones commonly seen in today's grand tiara collections - and assembling something of an ultimate tiara collection, just for fun. As I said when we began the tiara voting, the categories would be predetermined by me, but to take care of all those differing opinions, I decided to leave the end slots wide open.

There are 20 total spots, and we've voted on 17 so far. Today's vote is the last one:

Pick three wildcard tiaras!

These can be anything you like. We had a diamond wildcard slot previously, since all-diamond tiaras are so common, but this is open to all materials and shapes.  What three ultimate tiaras does the collection need to round it out?

Ready to vote? (Note we have a slight change here...)
-Vote for three tiaras in the comments. (If you're mentioning multiple tiaras in your comment, indicate which 3 get your vote, or I will just count the first applicable three. One comment vote per person, please.)
-I will not be counting the number of "likes" or up arrows on comments this time. If you wish to vote without leaving a public comment, you may tweet or email me.
-Non-royal tiaras and tiaras that no longer exist are fair game too.
-Voting is open until Wednesday.

Photos: Getty Images/Corbis/Sotheby's/Polfoto