Manufacturing process of a stone comprising the following steps: a) providing a base platform; b) providing a horizontal die comprising a series of through cavities along a vertical axis; c) providing a press with a punch for every cavity; said press comprising high-low actuation means for the simultaneous actuation of all punches; said actuation means being configured in such manner to actuate each punch from an idle position, wherein each punch is raised with respect to the die, to an operating position, wherein each punch is lowered and exactly inserted in the cavity in order to press the material contained in the cavity of the die; d) actuating the actuation means so that punches are in idle position; e) positioning the die under the punches in such manner that each cavity of the die is surmounted by a punch; f) actuating the base platform in such manner to place it under the die; said die being positioned on said base platform so that all cavities are closed in lower position by said base platform; g) filling the cavities of the die with a sand layer (10, 11); h) placing a tube on the sand; said tube having a height equal to or lower than the depth of the cavity and being provided with a longitudinal hole, a lower mouth directed downwards and an upper mouth directed towards the punch; i) actuating the actuation means to actuate the punches from the idle position to the operating position so that each punch presses the tube in the sand and simultaneously presses the sand inside each cavity of the die; said stones being provided with an upper surface directed upwards and a lower surface directed downwards; said tube being inserted in the stone with the upper mouth flush with the upper surface of the stone; j) actuating the actuation means to raise the punches and bring them back to the idle position; k) raising the die upwards so that all stones are placed on the base platform; l) placing the stones, which are arranged on the base platform, in a drying station in order to let all stones solidify; m) extracting the solidified sand inside the tube from each stone so that the longitudinal hole of the tube is free; n) placing a lighting device in the longitudinal hole of the tube. a) providing a base platform; b) providing a horizontal die comprising a series of through cavities along a vertical axis; c) providing a press with a punch for every cavity; said press comprising high-low actuation means for the simultaneous actuation of all punches; said actuation means being configured in such manner to actuate each punch from an idle position, wherein each punch is raised with respect to the die, to an operating position, wherein each punch is lowered and exactly inserted in the cavity in order to press the material contained in the cavity of the die; d) actuating the actuation means so that punches are in idle position; e) positioning the die under the punches in such manner that each cavity of the die is surmounted by a punch; f) actuating the base platform in such manner to place it under the die; said die being positioned on said base platform so that all cavities are closed in lower position by said base platform; g) filling the cavities of the die with a sand layer (10, 11); h) placing a tube on the sand; said tube having a height equal to or lower than the depth of the cavity and being provided with a longitudinal hole, a lower mouth directed downwards and an upper mouth directed towards the punch; i) actuating the actuation means to actuate the punches from the idle position to the operating position so that each punch presses the tube in the sand and simultaneously presses the sand inside each cavity of the die; said stones being provided with an upper surface directed upwards and a lower surface directed downwards; said tube being inserted in the stone with the upper mouth flush with the upper surface of the stone; j) actuating the actuation means to raise the punches and bring them back to the idle position; k) raising the die upwards so that all stones are placed on the base platform; l) placing the stones, which are arranged on the base platform, in a drying station in order to let all stones solidify; m) extracting the solidified sand inside the tube from each stone so that the longitudinal hole of the tube is free; n) placing a lighting device in the longitudinal hole of the tube.