The Crater of Diamonds is the only producing diamond mine in the United States, and many people who collect minerals or gemstones would like to own a genuine United States diamond. This patronage of the locality gives a small diamond found at the Park a value that is much higher than a diamond of similar size and grade found at almost any other location in the world.

In 2007 a person reportedly purchased a number of diamonds from a mine in India that were similar in characteristics and color to diamonds found at the Park. This person then visited the Park and claimed to “find” these diamonds in the soil of the Park. His intent was to sell them on eBay as “United States diamonds.” Fortunately, a small group of mineral experts became suspicious of the “finds” and documented it as a fraud.