Posted by Beth1 on February 3, 2015, 3:51 am, in reply to "Four brooches ?"
I think that the query is still if the brooches in the first and second of PJ Kiser's photos are the same - as that is what we have been discussing. To me it seems very clear that the third and fourth photos are of different brooches.
On the Sartorial Splendor, Queen's Vault site, there are 2 photos which appear to show this same jewel. See http://queensjewelvault.blogspot.com.au/2013/07/the-purple-thistle-brooch.html The image of HM's brooch in the second photo (where HM is wearing a blue outfit) is too indistinct for me to comment; however, I found another photo of HM wearing the same outfit in 2002, but it is clear from Getty photos that HM is not wearing this jewel. Unfortunately, I have not found when HM wore this outfit previously or subsequently, and so I don't have any more precise information. I guess we will all have to keep searching.