The Marie Antoinette Floral Tiara

Photos (clockwise from top left): Queen Marie Antoinette of France; tiara detail; Queen Marie Antoinette of France; tiara detail


Hold on to your hats, tiara lovers: today's sparkler is one for the ages. It's a diamond tiara that supposedly once belonged to the one and only Marie Antoinette -- one that allegedly today belongs to the family of the late Diana, Princess of Wales.



The tiara,