Ash diamonds, also known as diamond burial, refers to the process of converting the ashes of a deceased person into an artificial diamond through laboratory synthesis, thus achieving the purpose of making one's beloved truly "eternal."

An ash diamonds is a high-tech artificial diamond cultivated from carbon in the deceased's body, usually in the form of ashes. These diamonds meet the needs of those who find traditional graveyards and urns too rigid, as they can be carried with you, hence used to make "jewelry."

The chemical principle behind ash diamonds lies in the fact that the basic component of a diamond is carbon, and the human body contains 18% carbon. After cremation, the ashes contain 2% carbon, which can be extracted to refine diamonds.

As early as the 1950s, General Electric in the United States was the first to use this technology to synthesize the first laboratory-cultivated diamond (industrial grade). Russia later mass-produced it and applied it on a large scale in industry. Ash diamonds abroad are gem-grade diamonds synthesized using HPHT improved technology. The HPHT technology uses presses simulating super high temperature and pressure environments underground to crystallize and reorganize the carbon atomic structure of graphite into diamonds.

The physical properties, chemical composition, and optical effects of ashes-to-diamonds can match those of natural diamonds. Unlike natural diamonds, whose carbon comes from crustal movements, the carbon in ash diamonds comes from loved ones.