Black Diamond is a term used pejoratively in South Africa to refer to a member of the new black middle class. The term was not originally derogatory. It was coined by TNS Research Surveys (Pty) Ltd[1] and the UCT Unilever Institute to refer to members of South Africa's fast-growing, affluent and influential black community.[2] However, the term evolved negative connotations and is now used almost exclusively as a pejorative term.[3]