There are only two places on earth where diamonds can be found at their original volcanic source. The first is South Africa … and the second, improbably, is Arkansas, where visitors to Crater of Diamonds State Park unearth more than 600 diamonds each year.

More than 25,000 have been found to date — including the 40-carat “Uncle Sam,” which Wesley Bassum sold in 1924 for $150,000.

“Let us not be too particular,” wrote Mark Twain. “It is better to have old secondhand diamonds than none at all.”