Large particle synthetic diamond single crystal is one of the most brilliant pearls in the field of synthetic diamond technology. Large-grain diamonds have good optical properties and are used as optical windows and jewelry. Excellent thermodynamic properties are used as advanced heat-dissipating components and semiconductor substrates.

It has the highest hardness among all the minerals in the world and is known as "industrial teeth". It can be made into single crystal cutters, single crystal drawing molds, single crystal trimming pens, hardness testers and so on.