Tianyou large single crystal diamond refers to the diamond particles with a diameter greater than 1.0mm generated under high temperature and high pressure conditions, with high static pressure strength, impact toughness, thermal stability and wear resistance, mainly used in the production of diamond rollers, diamond single crystal dressing tools, diamond single crystal chips and diamond single crystal wire drawing die cores. Diamond single crystal chip is mainly used to produce diamond single crystal cutting tools and other precision processing tools; Diamond single crystal wire drawing die core is mainly used for the production of diamond single crystal wire drawing die.