The All Blacks and Highlanders prop and long-time girlfriend Claudia Hutton married in Queenstown earlier this month.
"The de Groots" was the simple message as the pair shared their first photo as a married couple from Jack’s Point on Instagram.
De Groot, a former Gore High School student, was resplendent in a sharp tuxedo, his bride wore a flowing veil, and the couple were accompanied by the rugby star’s beloved golden lab, Vinny.
Among the guests was Highlanders No 8 Hugh Renton, who posted about the "unreal day".
All Blacks forwards Ardie Savea and Tamaiti Williams also sent messages of congratulations, while former Highlanders first five Rhys Patchell posted "llongyfarchiadau" — Welsh for congratulations. — APL