The cleaver splits the diamond crystal with this knife. It is made of steel and can be of different sizes and weights. It is rectangular in shape, approx. 3 by 10 cm, and weighs approx. 70 gr. The blade should not be sharp as it should split and not cut.
Before splitting, a cut is made in the stone with a sharp diamond or laser. The notch must be V-shaped. Then the cleaver is placed against one of the sloping sides of the kerf. With the splitter hammer, an iron bar of 20 to 30 cm or a wooden hammer, you give a short blow to the cleaver to divide the stone into two pieces. The aim is to give the rough diamond a good shape, so that it can then be sawn and / or cut. [MOT]