A single-crystal diamond with low dislocations level grown by Henan Hydray International Trading has a large effective surface (up to 90% of the total) and high sensitivity of the surface, which makes it a perspective material for particle detection in the radiation environment. Compared to currently used silicon (Si) based sensors, diamond sensors are able to detect much more signals, are the best electrical insulator and wear-resistant material. The use of a diamond in this sphere is now widely recognized by high-energy particle detectors community all around the world.