Michael Dettlaff went to an Arkansas state park, spent 10 minutes looking at the ground, picked up a rock, and left $15,000 richer.

This chain of events sounds a little less implausible when you know that the rock was a diamond. And the park was called Crater of Diamonds State Park. And you’re allowed to go there, look for diamonds, and keep anything you find.

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Still, it doesn’t happen that often. Since 1975, only 31 people have found diamonds over five carats at the park. (This one is the 27th largest of those.)

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The New York Daily News writes:

The Apex, N.C., family didn’t even realize what it had.

“When I brought this rock out of the bag the guy who’s there, he just went bug-eyed and he said, ‘Hang on a second. I need to take this to the back room,’” Michael told ABC. “So then people start coming from everywhere and they’re like, ‘Oh yeah. It’s a big diamond.’”

The 5.16-carat “God’s Glory Diamond,” as renamed by Michael, could be worth as much as $15,000.

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We hope this is going into Michael’s college fund, because he’s going to need all the credentials he can get if he hopes to keep making the equivalent of $90,000 per hour.