Getting your Trinity Audio player ready... A rare gemstone discovered decades ago in a now-closed Colorado mine could sell for thousands of dollars in an October auction. Bidding for the chunk of ...

A Carthage man may have unearthed one of the rarest gemstones in the world — not in a mine, but in his own front yard. Robert Lewis Jr. says he found an unusual black rock just steps from his home ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. DENVER (KDVR) — A gem that was found decades ...