"International netball is certainly back and it's exciting to be able to confirm [an] opportunity to defend the Constellation Cup against our toughest rivals," she said.
"Heading overseas for the first time in two years is a significant milestone in what has been an uncertain time for international netball, and we can't wait for the Constellation Cup battle to resume."
The Silver Ferns ended a nine-year drought early this year in winning the Constellation Cup against the Diamonds in Christchurch, claiming the series 3-1, though had an edge due to the Australian side having to spend two weeks in quarantine.
A 2021/22 Silver Ferns squad will be announced on 10 August followed by a Silver Ferns team for the series in early October.
Tickets for the New Zealand leg of the Constellation Cup will go on sale in early August.
Constellation Cup schedule
Wednesday 13 October in Brisbane
Sunday 17 October in Cairns
Thursday 21 October in Auckland
Sunday 24 October in Wellington