If you keep up with the news on JCKonline.com, you’ve probably read about Crater of Diamonds State Park in Murfreesboro, Ark. It’s the world’s eighth-largest diamond reserve and the only one open to the public. Moreover, the park, located atop an eroded volcanic pipe in southwest Arkansas, has a finders-keepers policy that has benefited a number of lucky prospectors over the years, many of them little kids who’ve gone on to sell their raw treasures for thousands of dollars.At the end of September, I decided to give the whole digging thing a go, and persuaded my boyfriend, Jim, to come with me. If little kids were routinely unearthing rocks exceeding 3 cts., it couldn’t be that hard—could it?I’m here to tell you that, indeed, it could. In addition to a crash course in gemstone mining, the experience gave me a new appreciation for what professional miners put up with (Mother