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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 makes a diamond a diamond?

A diamond is a naturally occurring mineral composed of carbon atoms arranged in a crystal lattice structure. It is the hardest known natural material and is prized for its brilliance and durability, making it a popular choice for jewelry.

Pawn price for 1 carat black diamond cluster ring?

The price of a 1 carat black diamond cluster ring can vary greatly depending on the quality of the diamonds, the design of the ring, and the current market conditions. However, as a rough estimate, a pawn shop may offer around 20-40% of the ring's retail value. It's best to have the ring appraised by a professional jeweler before considering pawning it.

What are people who study diamonds called?

People who study diamonds are called gemologists. They specialize in identifying, grading, and evaluating the quality and characteristics of gemstones like 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.

How are diamonds a non renewable resource?

Diamonds are extracted from the earth's surface and cannot be renewed by man. New sources of diamonds are discovered when Mother Nature reveals a new volcanic cone where diamonds have been forming for millions of years. There is nothing a human can do to renew natural diamond deposits.

What is the diaphaneity of diamond?

Diaphaneity -- a function of the way light interacts with the surface of a substance -- of diamond is transparent in gem-quality diamonds, translucent in sub-gem-quality stones, and opaque in industrial diamonds.

About 80% of all diamonds mined are industrial diamonds.

Why diamond is very hard material?

Diamond is a hard material because of its strong chemical bonds, specifically the carbon atoms arranged in a rigid lattice structure. This arrangement allows diamond to resist deformation under pressure, making it one of the hardest known materials.

Why do we need diamonds?

Diamonds are valued for their brilliance, durability, and rarity, making them desirable for use in jewelry, especially engagement rings. They are also used in industrial applications due to their hardness and ability to cut through materials.

What are two mineral characteristics that differ between herkimer diamonds and true diamonds?

Herkimer diamonds are double-terminated quartz crystals found in Herkimer County, New York, while true diamonds are carbon-based minerals. Herkimer diamonds have a lower hardness rating (7.5) compared to true diamonds (10). Additionally, herkimer diamonds are typically clear or smoky in color, whereas true diamonds exhibit a range of colors depending on impurities.

These are formed from carbon by extreme pressure and heat over hundreds of millions of years?

These are diamonds. They are created deep within the Earth's mantle under high pressure and temperature conditions over long periods of time.

What has a greater density a tiny industrial diamond used in grinding powders or a 3 carat diamond in a wedding ring?

The tiny industrial diamond used in grinding powders will typically have a greater density than a 3 carat diamond in a wedding ring. Industrial diamonds are engineered to be very dense and durable to withstand grinding applications, whereas diamonds in jewelry are cut for brilliance and aesthetic appeal.

How is diamond made out of coal?

Diamonds are not made out of coal. They both contain carbon, but diamonds are formed deep within the Earth's mantle under high pressure and temperature, while coal forms from the decomposition of plant material near the Earth's surface.

Do diamonds have a special property?

Yes, diamonds have unique properties that make them highly valuable. They are the hardest naturally occurring substance, have exceptional brilliance and fire due to their ability to refract light, and are highly durable, making them ideal for use in jewelry.

What are the compounds found in diamonds?

Natural gemstone diamonds are formed from pure carbon. Often trace minerals are included, and in 'white' diamonds, the trace mineral is often nitrogen, which gives the gemstone a yellow tint.

A flawless gemstone diamond may contain another element such as boron, or have been formed with a molecular structure that affects its colour, and these gemstones are the most valuable.

Industrial diamonds are formed with visible inclusions of other minerals, which are not often classified. This is because industrial diamonds -- about 80% of all diamonds mined -- have relatively low value as compared to gemstone diamonds.

How do you measure impurities in diamonds?

Your question depends on the types of impurities you're measuring. Impurities develop both when the diamond is formed, and after the diamond is formed.

For example, if you are measuring visible impurities -- other minerals included within the clear gemstone -- you can measure them with a 10X loupe, and measure them visually.

You can read more about both types here: http://en.wikipedia.org/wiki/Diamond_flaws

When is lonsdaleite softer than a diamond?

Lonsdaleite is formed within meteorites and found when the meteorites land on earth. This is another alltrope of carbon, but with a different -- Hexagonal dihexagonal dipyramidal -- crystal structure.

It is always softer than a diamond, because a diamond's crystal structure maximizes the carbon's valance -- four -- into its rigid tetrahedral network of covalent bonds on eight sides.

What are hallmarks on a diamond?

Hallmarks on a diamond are specific markings or inscriptions made by diamond grading laboratories to verify the authenticity and quality of the stone. These hallmarks can include the laboratory name, the diamond's unique identification number, and other relevant information about the diamond's characteristics. They provide a reliable way to trace a diamond's origin and ensure transparency in the diamond industry.

How would you know whether the stone as real diamond or a fake diamond?

To determine if a stone is a real diamond, you can perform tests such as the fog test (a real diamond disperses heat quickly so fog won't stay on the stone for long), the water test (a real diamond sinks in water while a fake one floats), and the transparency test (a real diamond will refract light in a way that you won't be able to clearly see through it). You can also seek the help of a professional jeweler who can use specialized tools to accurately identify a real diamond.

Is the color blue natural color of diamonds?

Natural blue diamonds represent one colour of natural diamonds -- others being yellow, orange, green, pink and so forth.

Blue diamonds contain boron within their chemical structure, which gives the stone reflective properties that make it appear blue.

Do diamonds glow in fluorescent light?

No, diamonds do not glow in fluorescent light. Fluorescent light may enhance the sparkle and brilliance of a diamond due to its dispersion of light, but diamonds themselves do not emit light in that way.

What are the ways where diamond can be broken to smaller pieces?

Best practices dictate that if you want any control whatsoever over the size and geometry of the smaller pieces, that you take your diamond to a diamond cutter and pay to have it 'broken' into smaller pieces.

If you don't care about the smaller pieces, or the value of the diamond, you could hit the diamond with a hammer and see what happens.

Can you use hot water to clean diamonds?

Yes, you can use hot water to clean diamonds. Mix the hot water with a mild dish soap, soak the diamond for a few minutes, and then gently scrub it with a soft brush. Finally, rinse the diamond in clean water and pat it dry with a soft cloth.

Why would a diamond excavator want to convert diamond measurement from carats to grams?

About 80% of all diamonds mined/ excavated are industrial diamonds, with significantly less value that gemstones. Measuring in grams may attempt to acknowledge the commodity value of industrial diamonds, since carats and points as measuring parameters are best applied to gem-stone diamonds.

What is the diamond?

diamond, a mineral composed of pure carbon. It is the hardest naturally occurring substance known; it is also the most popular gemstone. Because of their extreme hardness, diamonds have a number of important industrial applications.

Which allotrope of carbon has a three-dimensional rigid structure?

Diamond is the allotrope of carbon that has a three-dimensional rigid structure. Its strong covalent bonds between carbon atoms form a rigid, tetrahedral structure, making diamond extremely hard and durable.