A rough diamond is a
diamond
Diamond is a Allotropes of carbon, solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. Diamond is tasteless, odourless, strong, brittle solid, colourless in pure form, a poor conductor of e ...
that has not been
cut or processed. They come in a variety of naturally occurring shapes, including
octahedral
In geometry, an octahedron (: octahedra or octahedrons) is any polyhedron with eight faces. One special case is the regular octahedron, a Platonic solid composed of eight equilateral triangles, four of which meet at each vertex. Many types of i ...
(eight-sided
bipyramid
In geometry, a bipyramid, dipyramid, or double pyramid is a polyhedron formed by fusing two Pyramid (geometry), pyramids together base (geometry), base-to-base. The polygonal base of each pyramid must therefore be the same, and unless otherwise ...
),
cubic
Cubic may refer to:
Science and mathematics
* Cube (algebra), "cubic" measurement
* Cube, a three-dimensional solid object bounded by six square faces, facets or sides, with three meeting at each vertex
** Cubic crystal system, a crystal system w ...
, and triangular (most commonly
macle
Macle is a term used in crystallography. It is a crystalline form, twin-crystal or double crystal (such as chiastolite). It is crystallographic twin according to the spinel twin law and is seen in octahedral crystals or minerals such as dia ...
s).
A raw diamond or rough diamond can also be a type of diamond that is not fully developed or can have less brilliance. Extreme heat and pressure beneath the ground make the
carbon
Carbon () is a chemical element; it has chemical symbol, symbol C and atomic number 6. It is nonmetallic and tetravalence, tetravalent—meaning that its atoms are able to form up to four covalent bonds due to its valence shell exhibiting 4 ...
atoms fuse in a specific structure.
See also
*
Bort
Bort, boart, or boort is an umbrella term used in the diamond industry to refer to shards of non- gem-grade/quality diamonds. In the manufacturing and heavy industries, "bort" is used to describe dark, imperfectly formed or crystallized diamond ...
*
Carbonado
*
Diamond clarity
*
Diamond type
*
List of diamonds
Diamond (gemstone), Diamonds occur naturally and vary in size, color, and quality, so the largest of a particular color may not be large in absolute terms, but may still be considered very desirable. Diamonds may also have high valuations in sal ...
References
External links
Raw Diamondat Gemone Diamond
*Loose Diamonds
diamond engagement ringsat Earthshine Jewels
Diamond
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