"They're incredibly important for the rohe, for Ngapuhi, and the people of New Zealand, Maori and Pakeha alike," she said.
It was fitting that the unveiling coincided with Matariki, a time to remember those who had passed on.
Ms Bigwood said the improved display had been a long time coming, but it had been done properly and according to Maori protocol.
Local hapu had given guidance on how the weapons should be displayed and what they represented. They were keen for the taonga to be shared so Heritage New Zealand was considering how they could be displayed elsewhere.
Ngati Kura kaumatua Nau Epiha, who conducted the blessing, said the weapons were originally made to separate people, to make people dislike one another - but Hongi Hika gifted them to missionary James Kemp when he gave up his ways, in exchange for Kemp's gift of Christianity.
"I'm glad I'm the elder to bring these taonga back into reality," he said.