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www.reference.com/beauty-fashion/diamond-cleavage-330b4d674d8db50

Diamond cleavage is a straight-lined crack in a cut diamond. Diamond cleavage is one of many inclusions, or flaws, that reduce the value of a diamond. Diamond cleavage reduces the value of diamonds not only because it is a cosmetic flaw, but also because cleavage can eventually lead to a break in the diamond. There are two types of diamond ...

www.quora.com/What-is-a-diamond-cleavage

Okay here's an example of a perfectly shaped diamond cleavage.. Yummly, that cleavage! Done gazing? Now to the real answer.. A diamond Cleavage in Mineralogy is the cleaving of a rough crystal stone into two pieces or more. It is the point & direc...

www.answers.com/Q/What_is_the_cleavage_of_a_diamond

Hope ( one-time owner-jeweler) modifies Diamond. by the way there was a burlesque actress called Hope Diamond, so-called from her Cleavage ( as has the precious stone) When I was a kid I knew ...

www.minerals.net/mineral/diamond.aspx

Bort and Carbonado exhibit a slightly lower hardness than other Diamonds, and lack cleavage. Lonsdaleite (also known as Hexagonal Diamond), is a type of Diamond found with meteorites and is of extraterrestrial origin. It is scientifically a different mineral than Diamond, and believed to have formed when meteoric Graphite fell to earth.

www.galleries.com/Diamond

Diamond has four directions of cleavage, meaning that if it receives a sharp blow in one of these directions it can cleave, or split. A skilled diamond setter and/or jeweler will prevent any of these directions from being in a position to be struck while mounted in a jewelry piece.

gemgate.com/.../rough-diamond-valuation/diamond-cleavage-naturally-cleaved-nature

Diamond cleavage would not qualify as an exception to the rule since it is not a whole stone but rather a piece of a whole stone that has been divided from its original state.

www.mindat.org/glossary/diamond_cleavage

The plane along which a diamond crystal can be split easily. The four planes paralleling the faces of an octahedron are those generally referred to as the cleavage planes, or diamond cleavage. All crystalline diamonds are more or less brittle and will be fractured by a sufficiently violent blow, but ...

en.wikipedia.org/wiki/Cleavage_(crystal)

Cleavage, in mineralogy, is the tendency of crystalline materials to split along definite crystallographic structural planes. These planes of relative weakness are a result of the regular locations of atoms and ions in the crystal, which create smooth repeating surfaces that are visible both in the microscope and to the naked eye.

www.answers.com/Q/Does_diamond_have_a_cleavage

Hope ( one-time owner-jeweler) modifies Diamond. by the way there was a burlesque actress called Hope Diamond, so-called from her Cleavage ( as has the precious stone) When I was a kid I knew ...

en.wikipedia.org/wiki/Material_properties_of_diamond

Some diamonds found in Brazil and the Democratic Republic of the Congo are polycrystalline and occur as opaque, darkly colored, spherical, radial masses of tiny crystals; these are known as ballas and are important to industry as they lack the cleavage planes of single-crystal diamond.