Team Logo. The Newburgh Black Diamonds were a team in the Atlantic League of Professional Baseball. They played their entire second season on the road. In 2000 they moved to Pennsylvania and became the Lehigh Valley Black Diamonds. Retrieved from "https://prosportsteams.fandom.com/wiki/Newburgh_Black_Diamonds?oldid=12293" Categories: Former Atlantic League Teams Teams in New York Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.