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Right now the vast majority of lab grown diamonds are used for industrial purposes (drilling bits, heat sinks, etc). As far as how they are grown in simple terms...there are really two ways. Both start with an existing piece of diamond, which serves as the growth base. HPHT methods (high pressure high temperature) surround the diamond seed with a carbon infused liquid, and the carbon atoms slowly migrate to the diamond seed and assmeble themselves on the seed, and thus 'grow'. CVD (chemical vapor deposition) also uses a diamond seed but is done at ultra-low pressure and high temperature. Here, a gas rich in carbon atoms is shredded allowing the carbon atoms to escape and 'rain' down onto the diamond seed...and the carbon then grows on the seed.

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16y ago
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13y ago

There are two main methods - "high pressure, high temperature" (HPHT and also called BARS method), or you can go "ultra low pressure, high temperature (also known as CVD). The HPHT method is the one used by almost all synthetic diamond producers today (both for gem use and industrial use). This process tries to mimic how diamonds are grown under the earth, and uses a diamond seed which serves as the growth template, and then a carbon source and catalysts are added to help it grow. Once you have a finished crystal, you cut off the original 'seed' diamond, and you are left with a nice lab grown diamond. CVD is currently mostly used for coating things with diamond, as there are still a lot of challenges to actually grow a larger single diamond with this method. It also uses a diamond seed, but the carbon is supplied by gas that is then molecularly shredded, and the carbon then 'rains' down onto the diamond seed below and grows. Note that most synthetic diamonds currently being made are also yellow, blue or pink, not white diamonds. There are some fundamental difficulties in growing whites, which I won't detail at this point. I've attached some links to the larger synthetic diamond makers (those growing diamonds for use in jewelry...industrial is a whole different focus). -------------------------- Diamonds are made of pretty pure carbon. Natural diamonds are a crystal which is grown deep underground, usually in or close to volcanos. The process is similar to growing any other crystal, but Diamond requires very very high temperatures and pressures to grow. Most diamonds come up from very deep within the earth carried by the lava flows from volcanos.

Diamonds can be made in factories, by squeezing Carbon in machines at high temperature and pressure, but diamonds made in this way are full of flaws and cannot be used for gemstones. They are instead very useful in industrial tools as an abrasive.

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14y ago

Gemstones are not made, in fact they are raw minerals, crystals that reside in the Earth's crust. We mine these minerals, and then often treat them or heat them, cut and polish them to give them cut, clarity and brilliance.

No actually mate they are not man made they are made of rock colliding together and forming from hundreds of years

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8y ago

That depends on your definition of "fake". Diamond substitutes like cubic zirconia (the crystalline form of Zirconium dioxide (ZrO2)) and any number of patented formulas like Stauer's DiamondAura(TM) are abundant, but are not true synthetic, carbon based diamonds, but are still 'fake diamonds'. Moisannite, quartz, white topaz, and white sapphires can also be manufactured and passed off as diamonds - but they would definitely be "fakes" if you passed them off as diamond.

Yes. It is possible to create REAL carbon crystal diamonds, but it isn't something you will be doing in your backyard anytime soon.

There are several ways this can be done. Just as natural diamonds, synthetic diamonds are created using high pressure and high temperature (HPHT). This can be done with a shaped high explosive charge or more commonly through multimillion dollar, purpose built machines: the belt press, the cubic press, or the split-sphere press (sometimes called a BARS apparatus). The machines generally yield much higher purity diamonds than the explosive method (this has been demonstrated on the Discovery Channel show Mythbusters). REAL diamonds can also be made using Chemical Vapor Deposition, where the diamond is grown gradually by feeding varying amounts of hydrocarbon gases into a chamber and energizing them. The gases are ionized into chemically active radicals in the growth chamber using microwaves, hot filament, arc discharge, welding torch, laser, electron beam, or other means.

On the microscale, diamonds may be formed using ultrasonic cavitation and at room temperature, but these are too small to be viewed with the naked eye.

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11y ago

If the natural gem is an aquamarine, its formation is different from the way diamonds are formed. You can read about the formation of aquamarine, below.

If the gem is a blue diamond and the word aquamarine is used to describe its colour, you can learn more about how it is formed, below.

If the gem is a man-made gem, then it is grown in a laboratory.

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7y ago

A synthetic diamond is created artificially and is also known as man made or lab created diamonds. It is difficult to tell the difference as they are also made from carbon and have the same hardness, refractive index and density as natural diamonds.

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9y ago

Artificial diamonds are created using two types of methods, HPHT and CVD. HPHT stands for High Pressure - High Temperature and CVD stands for Chemical Vapor Deposition.

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6y ago

Sinthetic diamonds are made only from carbon.
False diamonds (not synthetic) are made from glass, zirconium dioxide, silicon carbide.

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Continue Learning about Natural Sciences

Is the structure of synthetic diamonds are the same as natural diamonds?

The arrangement of atoms is the same in synthetic and natural diamond.


Why aren't diamonds made in a laboratory considered minerals?

Minerals are required to be naturally occurring. Synthetic diamonds are not.


How can diamonds be made artificially. How do synthetic diamonds differ from natural cost?

Diamonds are made artificially by simulating the conditions deep in the mantle where natural diamonds are formed: very high pressure and very high temperature. Any source of carbon can be used (I saw a documentary on making diamonds once where they used peanut butter to provide the carbon). Synthetic diamonds will always be less expensive than natural diamonds, therefore the jewelry business now requires natural diamonds that have been cut to have LASER etched identification codes to prove authenticity. This only became necessary after techniques were perfected to reliably get colorless synthetic diamonds.


What is used to smooth jagged glass?

Silicon carbide, aluminium trioxide, synthetic diamonds


What is the difference of a diamond and diamond aura?

Diamond Aura is the name of a SIMULATED diamond, NOT a synthetic diamond. Natural diamonds and synthetic (cultured) diamonds are identical in being made of pure carbon highly compressed with a hardness of 10. Cultured diamonds cost from 2/3 to 3/4 the price of natural diamonds. SIMULATED diamonds are NOT made of pure carbon. Cubic Zirconium (zirconium dioxide with hardness 8.5) and Mossanite (silicon carbide with hardness 9.25) are simulated diamonds and cost vastly less than natural or cultured diamonds. Diamond Aura stones have a hardness of 8.5, which suggests that they are cubic zirconium.

Related questions

What is the best brand of synthetic diamonds?

There are several companies that create synthetic diamonds or cultured diamonds. One such company that creates the best synthetic diamonds is New World Diamonds.


In what place do they make diamonds?

Synthetic diamonds are manufactured in several places in the world. Read more about this process, below.


Is the structure of synthetic diamonds are the same as natural diamonds?

The arrangement of atoms is the same in synthetic and natural diamond.


Are synthetic diamonds harder than real diamonds?

Synthetic diamonds and real diamonds both have the same level of hardness. They both rank 10 on the Mohs scale of hardness.


What is a gemesis?

Gemesis is a company that grows yellow diamonds. These are known as synthetic, lab created, lab grown or cultured diamonds. Synthetic diamonds are real diamonds and also produced by D.NEA, Apollo and Chatham.


Are diamonds part of sustainability?

Synthetic diamonds can be made in a sustainable manner. Mined diamonds are not sustainable.


What can we make out of diamonds?

They are used to harden tools like drill bits etc, although they use synthetic


What is the difference between simulated an synthetic diamonds?

The difference is big: synthetic diamonds are real diamonds and repeat all properties of natural diamonds, simulants are just trying to copy the brightness of the valuable gemstone. Synthetic's price is usually much higher than simulants. For more information on simulants and real diamonds follow the attached link.


Why did they make diamonds?

Diamonds Were Never Made, They Are A Natural Substance. However in more recent times, it is possible to produce a synthetic diamond by the compression or carbon, however it is very expensive.


What is the name of man made diamonds?

Synthetic diamond.


Are synthetic diamonds worth the money?

Depends where you put them...


Are genuine clean diamonds manufactured diamonds?

Manufactured diamonds generally is another word for synthetic. A natural diamond can be flawless as can a synthetic. The difference is that the lab process tends to create differ ant imperfection than nature