A teenager made the discovery of a lifetime when he stumbled across a 7.44 carat diamond at an Arkansas state park.

Officials at Crater of Diamonds State Park at Murfreesboro say the rock found Saturday by 14-year-old Kalel Langford is the seventh largest found since the park was established in 1972. The park hasn't provided an estimate of the diamond's value.

“It was just a few inches from a stream of water, with a bunch of other rocks that were about the same size,” Langford told ATSANEWS'.

He has named it "Superman's Diamond" and plans to keep it as a souvenir of his visit.

Park interpreter Waymon Cox describes the diamond as pinto-bean sized and similar in color to coffee.

“This diamond is a truly extraordinary find,” . “It was Kalel’s dream to visit the Crater of Diamonds State Park, and now he will always be part of this park’s remarkable history.”