Life commemorative diamond is an artificial diamond synthesized from ashes or hair. Its technical principle is that diamonds are made of carbon, and human ashes and hair also contain carbon. By extracting carbon from ashes/hair, and then simulating the underground ultra-high temperature and high pressure environment in a special device, the chemical bonds between the extracted carbon atoms are broken, and then the diamond structure is re-formed.

Beijing Funeral Parlour, Shanghai Funeral Parlour and Guangzhou Funeral Parlour all provide the service of ashes and diamonds.