Diamonds

If you can bite it and leave teeth marks in it, it means that the bracelet is made of a soft metal which you can easily damage. I think LC might be someone's inititial because I dont know what it really stands for. If you want to know if the metal used is gold or not, you should ask a local jeweler.

A chemical with a refractive index of 1.54 could be ethyl alcohol (ethanol). The refractive index of a substance describes how light propagates through it, with higher values indicating greater bending of light.

Diamonds are pure carbon, a useful form of clean burning fuel. In an 800 degree oven, and an oxygen atmosphere, the diamond burns cleanly and turns into Carbon Dioxide gas. Its an expensive way to heat your house.

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LOL! Carbon is certainly a very useful fuel in its more common though artificially-modified versions (coke and charcoal), but certainly not in its diamond form!

They have high refractive index and hardness.Under UV light it emits a blue glow.

The diamonds are mined by digging the earth. Sometimes the very big open pits are left after the diamond exploration.

Some diamonds are found on top of the earth, having been tumbled downstream from volcanic pipes by flowing water. These are known as alluvial diamonds, and are mined by hand -- workers sifting through the bottoms of riverbeds using sieves and water to separate the raw diamonds from other material. Alluvial diamonds may also be found in ocean water at the mouths of rivers.

An expert would tell if a diamond is real by looking at the diamond with a Loupe, a small magnifying glass used in the jewelry industry. However, don’t worry if you are not an expert or have one in your close circle. There are different ways you can verify the authenticity of a diamond by yourself.

How To Tell If Diamonds Are Real?

Firstly, you can give the diamond and certificate to a diamond’s appraiser, and this last one will provide you with the answer. You also can use an electronic device that can tell you if the diamond is real. If you don’t wish to spend money on this kind of equipment, you can take a piece of glass and scratch the diamond. If there is a scratch, the diamond is not real, as only a real diamond can leave marks on a diamond. Any other material cannot leave any marks if it is a real diamond.

It is not uncommon to feel "rough" turning on paved surfaces. This is because of the added "pull" of the front tires. This is not felt so much on 4WD surfaces simply because 4WD is meant for such surfaces; it will compensate for slippage in rough terrain. If you're driving in 4WD on paved surfaces, it would be a good idea to stop. 4WD is not meant for these surfaces. You could end up damaging your vehicle.

A man-made diamond, also known as lab-grown or synthetic diamond, is produced in a controlled laboratory setting using technological processes that replicate the natural conditions under which diamonds form in the Earth's mantle. These diamonds have the same chemical composition, physical properties, and crystal structure as natural diamonds, but are created in a shorter timeframe and under controlled conditions.

Absolutely. Any matter right in carbon can be converted to diamonds with sufficient heat, pressure and time. This implies, using the high-pressure high temperature method -- in excess of 1500C and pressure in excess of 45000bars or 2700F (about the temperature at which steel melts) or 30,000 tons per square inch -- is what's required.

These conditions -- at a minimum -- sustained over several million years, is the trick Mother Nature uses to make diamonds.

Yes it is possible. However it is impossible to do at standard temperatures and pressures like that at SATP. It has been done by the Z-Machine at the Sandia National Laboratories by using a pressure of 10 million times normal Atmospheric pressure. To create the pressure, the machine's magnetic fields hurled small plates at the diamond at 34 kilometers per second (21 miles per second), or faster than the Earth orbits the Sun.

Unfortunately in open air, the fact that is it large network of covalently bonded carbons make it extremely hard to melt in the first place. Secondly, diamond at high temperatures will not melt, rather it will prefer to burn, as characteristic of all carbon allotropes. A diamond will burn or oxidize when exposed to a hot flame in the presence of oxygen, for example an oxygen torch with a temperature of 800 degrees C (1,472 degrees F), according to The Merck Index, a standard chemistry reference work.

but it can be melted in the absence of air (or in vacuum) at a very very very high temperature

Since the melting point of diamond, the highest melting point required of any mineral -- 3820 degrees Kelvin -- a melted diamond is uncommon.

Read more about the mineral diamond, below.

Not humanly possible, but if temperatures reach (I will get back to you) it is possible.

It is pressure dependent. A normal atmospheric pressure it sublimates at about 4,330 degrees Celsius.

Yes, but only at extremely high temperatures, something like above 2000 degrees Celsius.

Pure gold is typically measured in karats, with 24 karats representing 100% pure gold. So, in pure gold, there are 24 karats.

Natural stone coping can deteriorate due to various factors such as weather exposure, freeze-thaw cycles, improper installation, lack of maintenance, and chemical damage from pool water or cleaning products. It is important to regularly inspect and maintain the coping to prevent deterioration.

Many people think that smashing can destroy it, as it has 'fracture planes' that make it susceptible to fracturing and shattering. However, in this exercise you have not destroyed it, you have merely taken a larger piece and made it into smaller pieces.

To truly destroy it, though, heat it to over 3820 degrees Kelvin with oxygen present. Essentially, that melts the carbon bonds.

Ask a jeweler
Take your stone to a local jeweler who can use a probe to determine whether or not what you have is a real diamond.
hit it with a hammer. if it doesnt break, its diamond

Diamonds are known for their brilliance, durability, and clarity. They are the hardest natural substance on Earth and are formed from carbon subjected to high pressure and temperature. Diamonds are prized for their ability to refract light, resulting in a sparkling appearance.

Loads of temperature changes in the upper mantle forces the carbon atoms to go deeper where it melts and finally becomes new rock, when the temperature reduces. If other conditions like pressure and chemistry is right then the carbon atoms in the melting crustal rock bond to build diamond crystals.

I have never heard of an Amatory diamond before. After an internet search, the only reference that I found to it was on ebay. It may be a trade name for another type of stone. There are many misnomers in the gem trade. I would have a GIA jeweler appraise the "diamond".

Yes, diamonds have a high refractive index which causes light to reflect internally within the diamond, creating a sparkling effect known as brilliance. This property is one of the reasons why diamonds are highly valued in jewelry.

A certified diamond is simply one that has been graded by a company whose job is to certify diamonds. A grade then is given to each and every stone according to the four C's. After they grade each stone it receives a certificate that it was graded and the product your purchasing is described gemologically.

But, a non certified diamond is not different from a certified one, except a piece of paper describing it, and your trust has to be in the hand of the salesperson who is selling it to you the consumer.

By law if a diamond has been altered, the store selling these items have to disclose that it is selling altered diamonds. So be a conscientious shopper and do your homework on diamonds, before you set out to purchase a non-certified stone.

Finally, In an effort to verify that diamonds are not 'blood diamonds' -- diamonds gathered as a criminal activity -- there are certificates that purport to show the provenance of a gem, to support the claim that the diamond has been legally mined, cut, polished and traded as a legal gemstone.