Wonderful photo, thank you OmerH! I have never seen that one before. It definitely looks as if it has been made from the elements which were removed from the original necklace.

After seeing the photo which OmerH posted, I am even more sceptical that Lady Warwick was photographed wearing that tiara.

If the tiara (as seen in the photo of Lady Warwick) was made from elements of the necklace, then it must have been remodeled at some stage. To my eye it seems that the tiara worn by Lady Warwick has a different central element and fewer individual elements on each side.

What do others think?