Congressional Budget Office Cost Estimate: H.R. 3776, Cyber Diplomacy Act of 2017 [open pdf - 103KB]
From the Document: "H.R. 3776 would codify the role and responsibilities of an existing office within the Department of State that works to advance U.S. interests in cyberspace and coordinates U.S. efforts to promote open, reliable, and secure communications technology."
Congressional Budget Office: http://www.cbo.gov/