Boris - more than once I have read that the tiara was worn with a cap - as for a coronet or crown. I have collected lots of pics of it and mean to put them together to show the tiara from many angles in Delhi.
--Previous Message-- : Actually, I'm rather wondering about the : backing of the Delhi Durbar tiara in this : photograph... : Is it due to a retouching process in order : to bring out the tiara's outline more : clearly (I don't think so), or is the tiara : actually worn here against a very dark : background sitting like a top hat's crown on : Queen Mary's head?