I think I have found a match for a tiara worn by one of the Peeresses on the pavement.
The lady second from the right, sat down in the white dress, appears to be wearing this pearl and diamond tiara which is currently on sale at Bentley and Skinner
--Previous Message-- : : A few more. Happy to make your day. : : : : : : : : : --Previous Message-- : Nellie , Thanks for your Sashes informations : and for sharing all these pictures of King : George Vi ’s Coronation. : You did may day . Kind regards MO : : :