Can you scratch a diamond with a knife?

The short answer is yes. Diamonds, like other gems, can be scratched. However, diamonds can't be scratched as easily as other gemstones. The softer a mineral is, the easier it will scratch.
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Can you scratch a real diamond?

Can You Scratch a Real Diamond? While incredibly tough, diamonds are still vulnerable to scratches just like other gemstones. The Mohs' scale (scale of mineral hardness) specifically defines hardness as the resistance to being scratched.
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Is there anything that can scratch a diamond?

There is nothing that can scratch a diamond except another diamond. A mineral like talc, on the other hand, is a 1 on the scale. You could scratch it with any hard material, even your fingernail. Natural talc is one of the softest minerals in the world.
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Can a knife break diamond?

Diamonds are hard, but they're brittle. The blade would break long before its edge went dull, but this is arguably worse: you can resharpen a dull blade, but a broken blade (especially one not made of a material that can be melted and reforged) becomes essentially useless.
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What happens if you scratch a diamond?

So while diamonds resist scratching better than any other substance, they're brittle and can fracture along cleavage planes. In addition to the diamond itself, several other mechanical elements of your ring can become damaged, including the ring band, prongs or claws, accent stones and setting.
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Can you scratch a diamond with sandpaper? (Part 3/3)



Will a needle scratch a diamond?

Diamonds are harder than any other material available. A simple scratch test gives usually a high degree of accuracy. It is possible to buy a diamond scratch pen with a sapphire (hardness 9) or borazon(hardness 9.75) needle and scratch the diamond to see if it leaves a mark.
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Can diamonds chip or scratch?

Diamonds can chip or fracture from hard impact, especially in areas where the carbon atoms are not tightly bonded. These areas, called cleavage planes, are the major source of damage to diamonds (figure 2).
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Can you damage a diamond?

Diamonds are hard, but they can be damaged. It is possible to break or chip a diamond. Breaking or chipping isn't the only way to damage a diamond. You can damage a diamond with chemicals that cause it to look dull and cloudy or discolor the stone until it is professionally cleaned.
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Can diamond be scratched by metal?

Since most metals will fall at or below 5 in the Mohs Scale, the answer is no you cannot scratch a diamond with a piece of metal. However, you can scratch other metals including gold and silver using a diamond. Some metals are harder, but it's still nowhere near hard enough to be able to scratch a diamond.
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What can cut a diamond?

Diamonds are cut with specialized tools that make use of diamond tipped phosphor bronze or diamond dusted steel blades. Such tools are used to exploit the structural weakness of the diamond by grooving and striking along specific tetrahedral planes.
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How can you tell if a diamond is real?

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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Why does my diamond look cracked?

The “crack” is a reflection from the diamond's girdle and is a so-called girdle reflection. This phenomenon is caused by the pavilion facets and is the answer to the horizontal line in the diamond. As you can see in the image above, the reflection is only visible from the side and not when seeing the diamond face up.
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Can glass scratch a diamond?

For the scratch test, take the stone and try to scratch a piece of glass with it. This should be done with caution because it is possible to damage or chip a diamond.
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How do you tell if diamonds are real without a tester?

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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Do all fake diamonds float?

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. This test is not always foolproof. Some materials that make up fake diamonds, such as cubic zirconia and moissanite, can sink if they are heavy enough.
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Can you break a diamond with pliers?

If your diamond is real, then you cannot break it with pliers. A diamond will only do so if it is fake. Pliers are one of the many ways to test diamond toughness. However, for the test to bear any results, you must have a strong grip.
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Will a diamond break if you hit it with a hammer?

Can you Break a Diamond with a Hammer? Yes, technically speaking, you can break a diamond with a hammer, but it will be very hard to actually do it. In most cases, you can smash a hammer over your diamond and it will do nothing to it.
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What happens if you sand a diamond?

You will end up with a ruined stone, but you shouldn't worry too much about that since it is not, in fact, a diamond (and probably not worth much). If, on the other hand, it comes out unscathed, you'll know your gemstone is real (and you should shell out a few bucks to get it appraised).
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Can you scratch a diamond with sandpaper?

No, sandpaper cannot scratch a diamond. The hardness of sand paper grit ranges between 7 and 9 on the Mohs scale, which makes sand paper softer than a diamond.
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Can you break a real diamond?

It's easy to think that diamonds are invincible, after all, they rank as the hardest substance known to man on the Moh's scale. Unfortunately, diamonds are not without their vulnerabilities. So, yes, diamonds can break.
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Can a raw diamond break?

Fracture: When diamonds break, they will cleave creating smooth, flat surfaces. Quartz and glass will create conchoidal surfaces when they break.
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Can diamonds break if dropped?

Answer: It is very unlikely that a diamond would crack or break just by dropping it. Under the most severe circumstances, a diamond would probably chip under a hard blow. Examples of these include hitting the diamond at an angle with a lot of force or banging your hand against a hard surface accidentally.
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Why does my diamond not sparkle?

A dirty stone doesn't sparkle because light simply can't enter the diamond and causes it to appear dull. So, if you notice your diamond jewelry getting cloudier overtime, it's likely due to a dirty surface and there's an easy fix to restore their luster.
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Do diamonds get cloudy?

There are various reasons why your diamond appears foggy, dull or cloudy. Experts struggle to advise without seeing specific diamonds. Cloudiness typically derives from the internal structure of the diamond, rather than the surface. For this reason, we rarely reverse the effect of a hazy appearance.
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Can tweezers scratch diamonds?

Actually it is possible to scrath a diamond with tweezers, but the scratch is that left by the metal on the diamond. It is quite common on bruted non polished girdles for e.g. but the force required to chip a diamond with tweezers would be beyond imagination.
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