<p>The Diamond Challenge is a free global entrepreneurship competition for high-school students, run by Horn Entrepreneurship at the University of Delaware. Teams compete in either the Business Innovation track or the Social Innovation track for a share of a US$100,000 prize pool, progressing through three rounds and culminating at the in-person Limitless World Summit.</p> <ul> <li>Eligibility: high-school students globally; teams of 2–4 with an adult advisor.</li> <li>Tracks: Business Innovation and Social Innovation.</li> <li>Rounds: Submission Round, Pitching Round, and Limitless World Summit final.</li> <li>Grand prizes per track: 1st US$12,000, 2nd US$8,000, 3rd US$4,500.</li> <li>Topical prizes: Gore Innovation Excellence Prize, Pathways to Prosperity Prize, Horn Entrepreneurship Global Prize, Human Flourishing Award and more.</li> <li>Free to enter, with curriculum and resources provided online.</li> </ul> <p>Register via the Diamond Challenge competitor portal and submit a venture concept before the January submission deadline; pitch-site partners support virtual or in-person pitching across many regions.</p>