She took to her Twitter page to share her excitement with her fans.
"Smiling ear2ear on the Harvard Business School campus w/ my diploma," the 38-year-old wrote on her Twitter page. She credited her mother for taking the photo.
Banks paid $31,000 for a two-week course in Owner/President Management Program at the Ivy League school.
Banks, who created the TV show, "America's Next Top Model," finished the executive program last week.