Can diamonds be liquid?

There might exist liquid diamond during heating, but it gets converted to carbon dioxide, in a specific time interval. @CURIE To avoid oxidizing the diamond, it would have to be heated in a vacuum or inert atmosphere, yes. Exposed to oxygen, it would burn completely far before it ever got close to melting.
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Is it possible to melt diamonds?

At What Temperature Do Diamonds Melt? If you heat the diamond in the open air, it will begin to melt and burn at around 700 degrees Celsius (1,292 degrees Fahrenheit). Burning a diamond without oxygen, however, will make it change into graphite (a crystalline form of carbon) before transforming into a fluid.
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Has anyone melted diamond?

Researchers at Cornell University for the first time have documented the melting of diamond, the hardest material known to man. It occurred by accident when researchers were performing studies of graphite under temperatures and pressures that mimicked those in the earth's interior.
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Can you turn diamonds into water?

A method of producing carbonated water comprises the steps of adding liquid oxygen to a vessel, heating a diamond or quantity of diamonds, and adding the heated diamond(s) to the liquid oxygen to produce carbon dioxide. The carbon dioxide is next infused into water or first pressurized and then infused into water.
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Can diamonds become gas?

The pure carbon of a diamond interacts with oxygen in the air and disappears to form carbon dioxide. If you heat a diamond to about 763° Celsius (1405° Fahrenheit), it will turn to vapor.
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Melting Diamonds with Oxygen



Can lava melt diamond?

To put it simply, a diamond cannot melt in lava, because the melting point of a diamond is around 4500 °C (at a pressure of 100 kilobars) and lava can only be as hot as about 1200 °C.
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Can the sun destroy a diamond?

Carbon atoms set free by ultraviolet light. It might be among the hardest materials known, but place a diamond in a patch of sunlight and it will start to lose atoms, say a team of physicists in Australia.
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Do real diamonds sink?

Drop the diamond into the water. True diamonds have high density and should quickly sink to the bottom of the glass. Fake diamonds are not as thick, and therefore, more likely to float in water.
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Why do diamonds breathe?

No, diamonds do not need to breathe. A diamond is a solid composition of carbon that does not expand or contract (change its shape or size) by the effect of weather, temperature, light, air or the constant presence of any liquid. This may be one of the biggest myths related to the design of breathing holes in jewelry.
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Will a real diamond shatter if heated?

A real diamond wouldn't be affected by the drastic temperature change and simply sink to the bottom of the glass, but a fake diamond would shatter immediately.
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Can fire damage a diamond?

Even without pure oxygen, diamonds can be damaged by flame, according to the Gemological Institute of America (GIA). Typically, a diamond caught in a house fire or by an overzealous jeweler's torch will not go up in smoke, but instead will combust on the surface enough to look cloudy and white.
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Can you melt Obsidian?

Obsidian doesn't have a particular chemical formula. It is a mixture. So there is no definite melting point.
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Are diamonds bulletproof?

Diamond Armor is certified bulletproof by NATO standards, waterproof thanks to nano-technology sealing and has an EMPA air conditioning system in-built to keep the wearer cool.
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Do diamonds survive fire?

Yes, diamond can be burned.
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What is harder than diamond?

The scientists found Q-carbon to be 60% harder than diamond-like carbon (a type of amorphous carbon with similar properties to diamond). This has led them to expect Q-carbon to be harder than diamond itself, although this still remains to be proven experimentally.
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What are chocolate diamonds?

What are Chocolate Diamonds®? Chocolate Diamonds are Le Vian's brand of brown or golden-hued natural diamonds, carefully selected for their rich deep colors. Only natural diamonds that meet Le Vian's exacting standards of clarity, quality, cut, and color will be worthy of the name Chocolate Diamond®.
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Why is there a hole under my diamond?

Naturally, people assume that the holes are there to allow the diamonds air to, well, breathe? But the holes are actually there to make it easy to clean the diamonds, and to make the diamonds easier to set without accidentally chipping the Culet (pointy tip of the diamond).
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Can diamonds have a hole?

It's called a culet and it's normal in old cut diamonds. It's beautiful!
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How can you tell a fake diamond?

Lay the stone onto the dot with the flat side down. Through the pointed end of the diamond, look down onto the paper. If you see a circular reflection inside the gemstone, the stone is fake. If you cannot see the dot or a reflection in the stone, then the diamond is real.
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How can u tell if a diamond is real?

This one's easy: Get a glass and fill it with water (it doesn't matter what type of water you use). Drop the diamond into the glass of water. Due to the high density of diamond, when dropped into water a real diamond will sink. If the diamond floats to the top or middle of the glass, it's fake.
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What is a rainbow diamond?

“Rainbow diamonds” is a commercial name used for synthetic rutile (or titanium dioxide), a diamond stimulant introduced in 1948 and popularized for some of its gemmological properties, which were close to those of natural diamonds.
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Why are my diamonds turning green?

A natural green color is the result of radiation damaging the diamond. This can occur when the diamond is still in the volcanic pipe (kimberlite) that brought it to the surface, or even once it has been eroded from there and found in a river or alluvial deposit.
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Is diamond toxic?

Diamonds are not poisonous. Diamond is the hardest material. It is the hardened form of carbon.
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What destroys a diamond?

In a stream of oxygen gas, diamonds burn initially at a low red heat. They will gradually rise in temperature and reach a white heat. Then, the diamonds will burn uninterruptedly with a pale-blue flame, even after the removal of the oxygen heat source.
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