My thought would be that the double drop set were probably designed so that the bottom pendant could be removed.
The set in the portrait do not appear large enough to be the Saudi earrings which were part of the wedding gift demi parure.
--Previous Message-- : : Yes. They are a gift set. : I am hopeless at distinguishing earrings in : photos. I believe Diana swapped the sapphire : pairs around a lot. : : : --Previous Message-- : Thanks. Versatile set. I believe the photo : with the large sapphire pendant shows us a : different pair of earrings that match the : pendant/necklace. : : --Previous Message-- : : These are pics I collected way back. : These are pairs of the sapphires, in about : three arrangements. : : : : : : : --Previous Message-- : Certainly. Please let me know your thoughts : about the veracity of this information. : : : : : : http://www.dailymail.co.uk/news/article-2260655/Kate-Middleton-Rotten-official-portrait-Duchess-Cambridge-artist-Paul-Emsley-unveiled.html : : : : : : : : :