Images from the London Illustrated News Saturday 9 July 1910.
My interpretation of these images is that the diamonds were presented in 1910 in the settings we are familiar with today. The comments in the Times state that Queen Mary approved the settings.
I suspect that the so called smaller of the two "pendants" in the images above were initially designed so that the individual brooches could be worn separately and in various configurations. That would be characteristic of Queen Mary's use of jewels.
It appears that Carringtons, not Garrard made the brooches.
--Previous Message-- : : I was always curious why these exhibition : sites so often said "Probably : Garrards" for the various Cullinan : brooches. : : http://46.236.36.161/microsites/dressfortheoccasion/object.asp?exhibs=BPSO2006jewellery&item=12 : : This now reinforces my thoughts that the : higher numbered Cullinans, given to Queen : Mary in 1910, were reset - most likely by : Carringtons for Garrards - as the brooches : we know today, for the Durbar stomacher in : 1911. : : Edit: reading further, another workshop was : involved in the special settings for Cs I : and II to be worn as a brooch, and similarly : for Cs III and IV as a brooch, and : "certainly executed an elaborate tiered : brooch from some of the other Cullinan : stones for Queen Mary, the commision being : passed on to Garrard's." More : tomorrow! : : Edit 2: "a London workshop acting as : outworkers for Garrard & Company" :