Queen Letizia and her daughters, Infanta Sofía and Crown Princess Leonor, are on the same page when it comes to vacation ...

The queen consort wore a Fiona Clare black dress with long sleeves. The dress featured ornate embroidery, with a delicately designed white motif on the bodice of the dress and on the cuffs.

Queen Adelaide's ornate crown from 1831 is one contender. Wearing a white and gold dress, King William IV's wife commissioned a brand new coronation crown for their coronation.

As for the Cullinan V, that was included in the crown when Queen Mary wore the piece again, this time as a regal circlet, for the 1937 coronation of her son and Elizabeth's father, King George VI.