Diamond, whose original name comes from the Greek word "adamas", meaning "invincible".

The country that discovered diamonds earlier is India. Over 2,800 years ago, diamonds were extensively mined in the Krishna River, Penna River, and its tributaries in the Andhra Pradesh region (now India). Before the mid-18th century, Golconda was the world's largest supplier of diamonds.

In the mid-17th century, diamond placer deposits were discovered in Brazil's Piauí and Minas Gerais states, and since then, Brazil has replaced India as the primary source of diamonds in the world.

In 1866, the discovery of diamonds in South Africa marked a historic turning point in the global diamond prospecting history. The diamond was found by the daughter of Daniel Jacobs while playing near the Orange River, near Hopetown, west of Kimberley in the Western Cape province. In 1869, the "Star of South Africa" was also discovered in South Africa. Since then, the search for diamonds has reached its climax in the Union of South Africa, with multiple large-scale, high-quality diamond placer deposits discovered along the Orange River and its tributary, the Vaal River. In the following years, several primary diamond deposits were also discovered in South Africa. Subsequently, countries such as the Soviet Union, Australia, Zaire, and China also successively discovered diamonds.

Due to the scarcity of natural diamonds, humans began to experiment with synthesizing diamonds artificially. French chemist H. Moissan realized that graphite in nature is converted into diamond under high temperature and high pressure conditions, and thus designed an experiment to mimic this natural process. He dissolved multi-layered graphite into newly melted steel and attempted to use the intense pressure formed when the liquid steel rapidly cooled and turned into a solid state to quickly transform the graphite into diamond. In 1880, British scientist J.B. Jannay reported that he had prepared diamond by sealing a mixture of hydrocarbons, bone oil, and lithium in a wrought iron tube and heating it to red-hot.