"Throughout it all, we tried to focus on what the important things were about the day," she said.
"And for us - it was getting married."
Mr Retallick spoke lovingly of his bride in front of their family and friends.
"To my wife, Niki, today you looked absolutely beautiful - I had the biggest smile on my face as you came up the aisle and I look forward to sharing a life of happiness and joy with you. I love you."
The wedding put a fine touch on what has been a spectacular 12 months for the highly acclaimed 23-year-old rugby star.
He was named IRB world player of the year last November and New Zealand player of the year the following month.
His fellow All Black mate, fullback Ben Smith, has also tied the knot.
Last week he married his long-standing girlfriend, triathlete and basketballer Katie Menzies.