GBH’s Antiques Roadshow has a fair share of characters cross its set, but none like the towering, booming-voiced cowboy who attended the 2018 taping in Tulsa, OK.  With a rare red diamond ring, cowboy Jim sought to learn the gem’s value. But would his $35K gamble pay off big? Join host Adam Monahan as he uncovers the mystery behind red diamonds and the improbable end to this story!