I think it is a bit different in composition from the one worn by Irene. It is possible that Queen Victoria was given this gift from Louis Philippe as a form of appreciation of giving their family a home. The use of fleurs-d-lys is a very common motif in the French Royal Family and many of them have brooches and tiaras made out of these is diamonds and pearls. I think QV gave Vicky this as part of her dowry and she in turn gave it to Sophie for her wedding. Evidently she did not gave too much to Sophie, as Vicky wrote to her daughter "I cannot spare any more jewels, you will have to wait until I am gone to get what I still have." Apart from her dower jewels, she did have part of the jewel collection of Queen Elise of Prussia. In retailation, Empress Augusta gave Vicky nothing.