Discover America's Crater of Diamonds State Park, a 3-billion-year-old treasure in Arkansas. Hunt for diamonds, learn geology ...

An average of two diamonds are found each day, officials said. In 1924, before the park’s founding, the 40.23 Uncle Sam Diamond was found in what is now the park area. You can see that diamond ...

Historic diamonds have come from this lamproite soil like the largest diamond to ever come from the park. “The Uncle Sam diamond is the largest diamond to be found in North America,” Reap said.