Can anyone tell me what a black diamond is? is it a genuine diamond (as in traditional only black)?

Answer 1

Black diamonds were introduced by debeers around 1989/90 at the nec spring fair (jewellers trade show). They were a way of using industrial diamonds (grey,brown,white but severly flawed,through to black, usually reserved for drills, tools, abrasives). They sorted the pure black ones, and cut them into jemstones, like regular diamonds. They never really took off, and, because of the black being patchy within the rough stone, there were only small gemstones cut, containing only the uniform dark black areas, of the rough stone. Now with pink diamonds becomming popular (these are usually colour enhanced by radiation) small uniform colour diamonds of different colours are popular. By small we mean in use in pave' setting ("encrusted effect") channel setting of eternity rings, Bling style words/names as pendants, encrsted with small stones. So now, the new "black" diamond is trendy! You will never really see one as a large single stone in a solitare ring. Diamonds, of all sizes naturally occur in differnent "hughes" (rather than bold colours) and a popular yellow hugh is called a canary diamond. Good flawless colour commands higher prices than white, of the same quality. An off shade, (grey, or ununifrorm colour) lessens the price. The "hope" diamond which was featured in the titanic film (it never really was on board in real life, a bit of romance, based on an actual diamond) is 45 carats and the pure blue of a light sapphire, dark blue topaz, only more so! A proccess has now been achieved, to grow in a lab, proper diamonds, that show as genuine on all heat dispese testing equipment as used by retail jewellers. They are chemically, Diamonds. These can be created in any uniform colour by adding metal oxides during growth of the crystal. these must be labelled as created diamond. NB. they are not c.z, or any of the shopping channel simulants. They are not cheap either, compared to c.z, but comparitevly so compared to natural, mined diamond.

Answer 2

Yes but they're not used for jewelry. They are used to drill through rock by oil rigs. They are called diamond drill bits.

They look more like a huge piece of black coal and not surprisingly, since diamonds ARE a form of coal.

That's why they burn easily.

Hard to scratch or break but will burn in no time.

That is one of the reasons oil companies pour oily mud down the pipe line. It helps the pipe move more easily and it keeps the black diamond drill bits from catching fire from the friction.

I must correct some of the answers you received above me.

They are TOTALLY black and are very cheap. They are not clear like regular diamonds. They are opaque, just like a regular piece of coal.

I used to work as an oil field photographer. They must have every peice of equipment they buy for their insurance records. I must have photographed 100 of them.

I learned a lot about the oil drilling business those few years. I had to. It was part of my job.

Answer 3

It is a standard diamond with an evenly distributed impurity of carbon black (eg carbon that is still graphite rather than diamond in formation).. They are very rare and are formed by geology at reduced pressure and temperature.

coloured Diamonds are the only occasion where a consistent flaw flaw is seen as a positive thing.

they are dark grey rather than true black..

Answer 4

Ok one thing I do know is that diamond is very similair to coal it has just been under a huge amount of pressure which alters its structure. Coal is black. This is possibly some kind of cross between the two? I'll be honest I'm not really sure what I'm talking about.

Answer 5

Black Diamond
From Wikipedia, the free encyclopedia
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Black Diamond may refer to:

In geology:

Carbonado, a dark polycrystalline diamond.
A black synthetic diamond, specificaly CVD polycrystalline diamonds or HPHT polycrystalline compact diamonds.
A colloquial term for coal.
Black Diamond (passenger train), named for this
As a person:

Black Diamond, a Liberian rebel leader.
Penelope Black Diamond, a German model.
As a city:

Black Diamond, Alberta, Canada.
Black Diamond, Florida, United States.
Black Diamond, Washington, United States.
As a company:

Black Diamond Cheese Limited, a Canadian cheese manufacturing company.
Black Diamond Equipment, a manufacturer of climbing and outdoor gear.
Black Diamond Coal, a coal mining company.
Black Diamond Strings, manufacturer of guitar strings and accessories.
As a building:

The Black Diamond building, part of the Danish Royal Library complex.
In music:

Black Diamond, an album by singer Angie Stone.
Black Diamond, a song by the rock band KISS.
Black Diamond, a song by the metal band Stratovarius.

I suppose that you mean the diamond type


Carbonado
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Carbonado is a natural polycrystalline diamond found in alluvial deposits in the Central African Republic and Brazil. This diamond looks black and is highly porous. Unlike other natural polycrystalline diamonds, carbonado has no mantle-derived inclusions and its carbon isotope value is very low. Additionally, carbonado exhibits strong luminescence (photoluminescence and cathodoluminescence) induced by nitrogen and by vacancies existing in the crystal lattice. Analysis of the luminescence suggests that radioactive inclusions existed in the formation process of carbonado.

The origin of carbonado is controversial, but several hypotheses have been proposed:

Direct conversion of organic carbon under high-pressure conditions (the Earth's interior)
Shock metamorphism induced by meteoritic impact at the Earth's surface
Radiation-induced diamond formation by spontaneous fission of uranium and thorium
These hypotheses, however, still have several problems. First, if carbonado were formed by phase transformation of organic graphite inside the Earth, carbonado would be found all over the world. But carbonado appears only in the Central African Republic and Brazil. Second, the formation process of a shock metamorphic event also has problems, because shock-induced natural polycrystalline diamonds usually have hexagonal diamond (lonsdaleite) inside the samples and the presence of hexagonal diamond inside carbonado has not been reported. The third hypothesis, radiation-induced diamond formation, is questionable as well, because the energy of radiogenic fission is too small to create polycrystalline diamond of the large grain size of carbonado (up to 500 micrometers). These diamonds are currently being used in various designs and settings in the jewelry industry.

Or the synthetic form

Synthetic diamond
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A colourless synthetic diamond produced via chemical vapour depositionSynthetic diamond is diamond produced through chemical or physical processes in a factory. Like naturally occurring diamond it is composed of a three-dimensional carbon crystal. Due to its extreme physical properties, synthetic diamond is used in many industrial applications, and has the potential to become a serious disruptive technology in many new application areas such as electronics and medicine. Synthetic diamond is also called industrial diamond, manufactured diamond, artificial diamond or cultured diamond. Synthetic diamond is not the same as Diamond-like Carbon, DLC, which is amorphous hard carbon, or diamond imitation, which can be made of other materials such as cubic zirconia or silicon carbide.

Answer 6

they are rare but yes a black diamond is one of the colors

Answer 7

Extremely rare and extremely expensive.

Victoria Beckham has black diamond earrings .. go google on images .

Answer 8

Do you know what is a black diamond? Coal. Yes, believe me. :)

Answer 9

RARE?????


That's a Good One:
Wholesale: 15-50ppc
( $15-50 U.S. Dollars Price per carat ) Up to 50+ Carat Sizes.

Answer 10

They're not literal Black but the Clarity is darker than in your average diamonds.
They have an almost Grey hue 2 them.
But not really that remarkable!