Zimbabwe's Central Bank governor Gideon Gono Saturday filed a US$ 12.5 million lawsuit against a private newspaper, which implicated him in diamond smuggling, citing Wikileaks cables. The lawsuit is the second in the week against the Standard newspaper, which was earlier landed with a US$ 15 million suit by First Lady Grace Mugabe over the same allegations. The paper, quoting Wikileaks cables, reported last week that Mugabe and Gono were among several top officials involved in diamond smuggling from newly discovered fields in the east of the country.