Thanks for posting that great close-up Crowne.

Welsh Leek Brooches have been worn by (at least), QEII, Queen Camilla, Princess Diana and Catherine, The (current) Princess of Wales.

It seems that they are all different - with the possible exception of Diana's and Catherine's.

It is harder to tell with these two - they may be the same.

I think that maybe the Welsh Guard would present Catherine with a new one - but I can also see William sentimentally wanting Catherine to wear his mother's.

Does anyone have any insight?

There are more obvious differences between QEII's and QC's.