Diana was born in Denver and raised by a single mom with a terminally ill younger brother. (He died of Cystic Fibrosis in 2010.) She grew up in Pueblo, Colorado where she excelled in academics and was offered a scholarship to Colorado School of Mines in 1993. She worked odd jobs through high-school and college including waitressing, work-study programs and internships including one summer at the Pueblo Board of Water Works. She graduated with a degree in Chemical Engineering and Petroleum Refining in 1997, and moved to Dallas to work for an engineering consulting firm as a Process Engineer.