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Synthetic diamonds were detected firstly in 1894/1895 by the French chemist Ferdinand Frédéric Henri Moissan (1872–1907, 1906 Nobel Prize) in a quenched 3000 °C hot iron melt [13] and then synthesized industrially from graphitic carbon only since 1955 by the high‐pressure process with “belt reactors” of the American physicist Percy Williams Bridgman (1946 Nobel Prize) by the American General Electric Company in a catalytic metal melt of carbon at 1200 °C and around 45 kbar [14].

In the years 1956–1977, the Russian scientists Boris Spitzyn and Boris Derjaguin detected the low‐pressure buildup of polycrystalline diamond layers by chemical vapor deposition (CVD) through thermal decomposition of organic carbon compounds onto diamond, silicon, or non‐carbide‐forming metal substrates [15]. This detection was industrially realized by several methods and companies.