According to CNN, the photograph was taken in the West Sitting Hall of the White House private residence.
The photographer, Regine Mahaux, is well-known for her celebrity portraiture and has taken several pictures of Trump in the past, including high-glamour editorial images.
Here it is:
For her official First Lady look, Trump opted for a black tuxedo-style jacket with a sequined neckerchief. Her engagement ring, reportedly 25-carats, is also on full display.
The picture now accompanies Trump’s biography on the White House’s official website.