I think Queen Maud had worn her weddinggift pearl tiara at her parents coronation. Still the emerald parure is grander so im glad the crownprincess got to borrow it from her mother. Queen Maud may have needed the other tiara for other events surrounding the coronation.
--Previous Message-- : Maybe Martha wore the emerald parure because : it had appeared at the previous coronation : in 1911? That's a nice mark of continuity. :