During the wedding, I once saw Victoria gently push Estelle's hand away from a grab for the diamonds!
I rather wish Victoria would put the diamond drops back into the necklace. Both the necklace and the tiara have always looked a bit empty to me. But I agree that they looked wonderful on Princess Victoria. Someone did a nice job of hiding the frame under her hair.
Madeleine's hair was styled in such a way that it could be loosened and worn down for the dinner without disturbing the tiara and orange blossoms. I wonder if the hairdressers also wait up to undo those elaborate hairstyles at bedtime!