Patent ID: 8591288

Claim:
Method for processing a surface ( 5 ) of a diamond ( 1 ) with a mechanical part ( 3 ) which is moved in relation to the surface ( 5 ) of the diamond ( 1 ), wherein (i) unbound diamond grains ( 2 ) are provided in between the mechanical part ( 3 ) and the surface ( 5 ) of the diamond ( 1 ), (ii) the mechanical part ( 3 ) subjects the diamond grains ( 2 ) to a rolling motion over the surface ( 5 ) of the diamond ( 1 ), such that the diamond grains ( 2 ) move in relation to the mechanical part ( 3 ) and the surface ( 5 ) of the diamond ( 1 ), (iii) the mechanical part ( 3 ) makes a mechanical contact with the surface ( 5 ) of the diamond ( 1 ) via the diamond grains ( 2 ), whereby this mechanical contact represents a contact length ( 8 ) over which the diamond grains ( 2 ) roll on the surface ( 5 ) of the diamond ( 1 ), the rolling of the diamond grains ( 2 ) being influenced by the grain size of the diamond grains ( 2 ) and the roughness and material of the mechanical part ( 3 ) and, (iv) the diamond grains ( 2 ), with the support of the mechanical part ( 3 ), press themselves in the surface ( 5 ) of the diamond ( 1 ) while rolling, as a result of which microscopic fissures ( 6 ) are created in the latter surface ( 5 ) which then gradually crumbles off.