Single point "brutted diamond" dressers are made with selected "Congo Rounds" mounted in a matrix. A Single cutting edge is presented to the grinding wheel. Diamonds for single point dressers are selected in accordance with quality and size. The question of using a superior, average or commercial quality, depends on the grinding finish require, and the machines and working parameters. We offer three grades namely A, B & C for all the diamond size, i.e. from 0.15 to 5.00 carat size.