Diamond is a solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. Diamond is tasteless, odorless, strong, brittle solid, colorless in pure form, a poor conductor of electricity, and insoluble in water.
A diamond is a mineral composed of pure carbon. It is the hardest naturally occurring substance known; it is also the most popular gemstone. Because of their extreme hardness, diamonds have a number of important industrial applications.
What is Diamond? Diamond is a rare, naturally occurring mineral composed entirely of carbon. Each carbon atom in a diamond is surrounded by four other carbon atoms and connected to each of them by strong covalent bonds - the strongest type of chemical bond.
The brilliance of a diamond results from its properties of refraction, reflection, and dispersion. Upon passing through a diamond facet (one of many small planes cut onto the gem surface), a light ray is refracted, or bent. The bent ray is reflected from a bottom facet upward through a top facet.
Diamond[a] is a gemstone formed by cutting a raw diamond. Diamonds have high monetary value as one of the best-known and most sought-after gems, and they have been used as decorative items since ancient times.