Diamond
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Diamond is a mineral form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. Diamond is a tasteless, odorless, strong, brittle solid, a poor conductor of electr
A rough diamond
Main diamond producing countries (in French)
One face of an uncut octahedral diamond, showing trigons (of positive and negative relief) formed by natural chemical etching
The extreme hardness of diamond in certain orientations makes it useful in materials science, as in this pyramidal diamond embedded in the working surface of a Vickers hardness tester.
Synthetic diamond
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A synthetic diamond or laboratory-grown diamond, also called a lab-grown, laboratory-created, man-made, artisan-created, artificial, or cultured diamond, is a diamond that is produced in a controlled
Diamond
…tens of million years ago), they were carried to the surface in volcanic eruptions and deposited in igneous rocks known as kimberlites and lamproites. Synthetic diamonds can be grown from high-purity carbon under high pressures and temperatures or from hydrocarbon gases by chemical vapor deposition (CVD). Natural and…
Lab-grown diamonds of various colors grown by the high pressure, high temperature (HPHT) technique
Synthetic diamonds, which have a different shade due to the different content of nitrogen impurities. Yellow diamonds are obtained with a higher nitrogen content in the carbon lattice, and colourless diamonds come only from pure carbon. The smallest yellow diamond size is around 0.3 mm.
Moissan trying to create synthetic diamonds using an electric arc furnace
First synthetic diamonds by ASEA 1953