Thank you for sharing that photo with us Arthur. It shows just how versatile these earrings are. I personally would love to see this set with emeralds to match HRH's pearl choker with the large emerald clasp.
I have a feeling that I have seen a photo of the Princess wearing the central diamond elements of these earrings without the outer diamond border.
Unfortunately, at present, I do not have a photo to hand. I hope that some other posters might have one.