Sifting through the dirt at Crater of Diamonds State Park, a regular visitor turned up the biggest find of the year: a 3.86-carat jewel dubbed the "Heart of Arkansas."
Park interpreter Waymon Cox describes the diamond found Thursday as the size of a piece of candy corn, with a pearly white shine.
The park isn't sure how much the gem is worth. Cox said a 2-carat diamond found three years ago was later cut and appraised for nearly $22,000.
A longtime visitor to the park from Murfreesboro, where the park is located, found the diamond. He's asked to remain anonymous.
The park calls itself the world's only public diamond-producing site. Cox says it usually yields about five to seven large diamonds a year.