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Diamonds

Diamonds are the hardest mineral on earth. Ask questions about famous diamonds, mining, production and buying.

4,145 Questions

What are natural diamonds?

Natural diamonds are formed deep within the Earth's mantle under high pressure and temperature conditions. They are composed of carbon atoms arranged in a crystal lattice structure. These diamonds are mined from the Earth's surface and are prized for their hardness and brilliance.

How does diamond turn into rings?

Diamonds are cut, shaped, and polished by skilled artisans to create the desired shape and facets. These diamonds are then set into metal bands to create rings. The process involves careful attention to detail and precision to ensure a beautiful finished product.

Can raw black diamonds be transparent?

No, raw black diamonds are not transparent. They appear black due to numerous inclusions and impurities that scatter light, giving them their dark color. Transparency is associated with white or colorless diamonds.

How can you tell if its glass or a diamond?

You can differentiate glass from a diamond by examining their hardness, refractive index, and sparkle. Diamonds are much harder than glass and have a higher refractive index, meaning they will reflect light differently. Diamonds also tend to sparkle more due to their superior light dispersion. Additionally, you can perform a scratch test as glass is softer than a diamond, allowing a diamond to scratch it.

What is the hardest rock in the world besides diamond?

The hardEST is a diamond, and some other hard ones are corundum and topaz. If you look up Moh's hardness scale, it will show you some.

What is an expert in diamonds selection called?

This person is called a gemologist. There may be a sub-definition of this job title particular to one who selects diamonds all day, but overall, this person trained and is probably certified as a gemologist.

Read more, below.

Why a slight movement of a diamond crystal produces a brilliant play of light?

When light hits the diamond crystal, it enters and is refracted within the diamond due to its high refractive index. The facets of the diamond act as mirrors, reflecting the light internally and causing multiple reflections. When the diamond is moved slightly, these internal reflections change, creating a brilliant play of light known as dispersion and scintillation.

Is a diamond a thermal and electrical conductor?

A diamond is a superior conductor of thermal energy (heat). It's better at this than anything else we know of. But diamond is a poor conductor of electricity. It's actually a pretty good insulator.

How do you tell if a real diamond in set in silver?

Take your setting to a jeweler or a gemologist who can help you understand the nature of the stone set in silver.

At home, you can perform a small test. You can find a disposable piece of glass and drag the stone across it. If the stone leaves a groove, it's possible that the stone is a diamond, but it might not be.

Why is it that diamonds cant shatter glass?

Diamonds are much harder than glass, so when a diamond comes into contact with glass, the hardness and strength of the diamond prevent it from shattering the glass. Instead, the diamond would typically scratch or chip the glass surface.

What does one tenth Carat TW Diamond mean?

The phrase "carat TW" means the carat total weight. This implies there may be multiple diamonds involved in the piece of jewelry and when they are all added together, one-tenth of a carat is their combined weight.

"Carat" is just a diamond industry special word for weight of a diamond stone. One carat is equal to 200 milligrams, or in other words, a 5-carat stone weighs 1 gram. The word "carat" originates from the Greek word kerátion, which means carob beans, which were known in the ancient world for uniformity of their size and weight and were used as a measure of weight for different objects, including gemstones.

In the Far East instead of carob beans jewelers used rice grains to determine the weight of gemstones. Because of this fact, you may occasionally hear some jewelers referring to a 1-carat diamond a "four grainer," which means in the past 1 carat was equal to four grains of rice. The weight of smaller diamonds is often expressed as points, not carats. One carat is equal to 100 points. Thus, for example, a 10-point diamond has the weight of 0.1 carats.

Is diamond more valuable than moissanite?

Yes.

Diamonds can be considered investments, especially stones larger than one carat. Moissanite stones are more commonly worn for their 'flash' value.

Read more about comparing these two, below.

Do diamonds degrade?

No, diamonds do not degrade over time. They are one of the hardest naturally occurring substances and are very resistant to wear, making them a durable option for jewelry.

Is diamond poision?

Diamonds are not poisonous, though an allergy has been reported by some unfortunates.

Do diamonds decompose on heating?

Diamond is the hardest mineral known. It is composed of 100% carbon, meaning it cannot 'decompose' in the classic sense where an object's different elements separate from each other.

You can heat a diamond to:

  • 3820 degrees Kelvin, or
  • 6416.33 degrees Fahrenheit, or
  • 3546.85 degrees Celsius

and at that height heat the diamond will melt.

What mineral is in a diamond ring?

In the diamond, you'll find only carbon. This assumes that the diamond is the only stone in the ring.

In the band and setting, you might find any type or quality of metal: gold, platinum, silver and so forth.

Would diamond to be electrically conductive?

One way to determine whether or not a diamond is a real diamond is to use an electric probe, because a diamond will respond to electricity differently than will a fake stone.

However, diamonds are not a practical conductor of electricity: they are too expensive.

What does water have to do with diamonds?

Two ideas come to mind when combining the words 'water' and 'diamonds'.

First. is an older description of colourless stones, said to be water diamonds for their clarity.

Second, is alluvial diamonds, found in river beds and in ocean water where rivers empty into them. The stones have been picked up by the water and moved downstream with other silt, after flowing over a diamond pipe.

What is a small diamond?

A small diamond typically refers to a diamond that is under 0.50 carats in weight. These diamonds are often more affordable and can be set in various jewelry pieces such as earrings, pendants, or delicate rings.

How can you tell if something is real diamond?

A diamond conducts heat, so you use a probe that confirms that the stone you're evaluating indeed meets this criteria.
Um.... Actually, I think you may want to check the rocks and minerals section? If you mean "How can you tell if your copy of Pokemon Diamond is real", then it's simple. Look it up on youtube, and you'll get very good answers.

What is diamonds pore space?

Diamonds do not have pore space like other materials. They are composed of a compact crystalline structure with very low porosity, which means they do not have open spaces or pores within the structure.

Are real diamonds heavy?

Yes, real diamonds are heavy for their size. Diamonds have a high density, which contributes to their weight. This density is one of the factors used to distinguish between real and synthetic diamonds.

Is 28 kt gold purer than 24 kt gold?

24 karat gold is 100% pure gold. There is no such thing as 28 karat gold.

What makes a diamond so valuable?

People value diamonds based on their visually engaging beauty, their emotional baggage, and their investment value.

Diamonds are rare and expensive, especially larger, high-quality stones, because they are expensive to discover, mine, cut, polish and market.

How do kimberlite pipes and diamonds form?

Kimberlite pipes form when magma rises from deep within the Earth's mantle and rapidly reaches the surface, carrying diamonds and other minerals with it. The extreme pressure and temperature inside the mantle crystalize carbon atoms into diamonds within the kimberlite magma. When the kimberlite erupts onto the surface, it brings diamonds along, creating diamond deposits.