Billy Moore, 45, of Murfreesboro, Ark., was searching for diamonds at the Crater of Diamonds State Park when he thought he had discovered a piece of wadded up gum paper.

But the gum wrapper was a 3.20-carat diamond.

Moore was “wet sifting” in the east drain of the park’s 37.5 acre diamond search area when he found the stone in his screen. A screen is used to sift through dirt.

“At first I thought it was a piece of wadded-up gum wrapper. Then I rolled it around with my finger and saw a shiny side, and I knew it was a diamond,” Moore said.

He made ...

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