Disclosed therein is a diamond tool fabricated by combining a mesh net with a synthetic resin material, which includes a diamond sintered body integrally coupled with the outer surface of the mesh net and a synthetic resin material impregnated into the inner surface of the mesh net, thereby maximizing a bonding strength and minimizing weight. The diamond tool includes: a diamond sintered body having a diamond tip; a mesh net integrally coupled with the sintered body in such a way that a portion of the sintered body is impregnated therewith; and a synthetic resin material for forming a body in such a way as to couple the mesh net with the circumference of the sintered body to thereby expose the sintered body to the outside.