Zhengzhou Research Institute for Abrasives & Grinding has been founded for 50 years when is the 45 anniversaries of the birth of first synthetic diamond.

1. The code 121

The first machinery industry ministry issued the national key research project on October 1960, as a secret, the name of which use code, which is later well known as artificial diamond research project.

2．The prime minister’s care

The prime minister made three instructions: first, comrade Xiannian take charge of the diamond. Second, the production of diamond should be prevalent in people like the polycrystalline silicon and single crystalline silicon. Third, it can produce 20000 carats whether or not?

3. Given priority to research while make a small-scale production

Zhengzhou Research Institute for Abrasives & Grinding set a record of 10000 carats in 1966.

4. Make a large grain

Zhengzhou Research Institute for Abrasives & Grinding stared to produce a large grain diamond in 1967.

3. Control three raw materials

Three raw materials are: silicon, guimaraesite, synthetic diamond.

The leading diamond group takes an indelible part in the success which China has become the largest country in the production of synthetic diamond.