The Borneo-set could also be worn in it's original version. As a coronet or crown. I very much doubt it though. Diamonds and pearls go perfectly well with gold and yellow. If those actually are the colours of the dress for the swearing-in ceremony. I would not put it past Maxima to make up her mind only at the last moment. She was clear about not revealing anything so this leak might mean chosing another gown for the event (im fairly certain she has several made).
--Previous Message-- : I see in your link that Marc van der Linden : said Princess Máxima, pardon Queen Máxima : will wear jewelry in gold and jellow. That : seems to indicate the Borneo set as she : already wore in Luxembourg with or without : additions. :