Diamonds

A laboratory working with a manufacturer of synthetic diamonds found that the elements involved included carbon, sulphur, iron, calcium, cobalt, nickel, yttrium, zirconium, gladolinium and hafnium. However, their lab report did not identify proprietary materials.

Diamond cannot exist as a gas under normal conditions because it has a very high melting point and boiling point. Diamonds will typically convert into gas form through a process called sublimation at extremely high temperatures and low pressure.

Natural diamonds in the white color scale are graded from D (colorless) to Z (light yellow). The white color range is known as G-H grade. The question of whether what you are looking at is real or not should be considered regarding the material rather than the color, as natural diamonds come in very many colors, usually white. Check if the diamond is man made, cubic zircon, Russian simulate or something similar. Clarity enhanced diamonds are also real, natural diamonds.

Diamonds are valued by how closely they approach colorlessness - the less color, the higher the value. Most diamonds found in jewelry stores run from colorless to near-colorless with slight hints of yellow or brown. The only exceptions are the fancy color diamonds that lie outside of this range.

Many of these color distinctions are so subtle that they are invisible to the untrained eye. But these slight color differences make a very big difference in diamond quality and price.

PS - The diamonds described above are actually not white but colorless. There are truly white diamonds they are very rare. The best are opalescent and quite beautiful. Check out Stephen Hofer's book, "Collecting and Classifying Coloured Diamonds". Or visit vividpink.diamonds to get a newly released digital copy.

A diamond can chip or crack if it experiences a sudden impact, intense pressure, or extreme temperatures. Even though diamonds are one of the hardest substances, they can still be damaged if subjected to these factors. Regular wear and tear can also contribute to chipping or cracking over time.

Hitting a diamond is probably not an activity that will produce much of a result, if your goal is to 'break' the diamond.

If you purchase a diamond large enough to be a target to hit, you'll spend tens of thousands of dollars, perhaps more.

Diamond is the hardest natural mineral known

Diamonds are mined from the earth, and in the mining process the diamond stones are separated from the other material.

Seventy-five to eighty percent of diamonds are graded as industrial diamonds, and sold in bulk as bort to makers of diamond-coated tools and precision instruments.

The raw, gem-quality stones are moved to a sorting process, where like stones are grouped, and where larger stones are separated out for special treatment in order to maximize their value.

Once a stone reaches the cutting table, it follows a series of steps, including "...planning, cleaving or sawing, bruting, polishing, and final inspection."

Lasers -- or fine-tipped diamond tools -- can engrave characters or images on diamond stones. Sometimes this is done to identify an individual stone.

Note, however, that any engraving on a diamond can be polished off the stone.

No, sandpaper cannot scratch a diamond because diamonds are the hardest natural material on the Mohs scale of mineral hardness. Sandpaper is designed to abrade or scratch softer materials, not harder ones like diamond.

Light entering a diamond can be reflected off its surfaces (internal or external) or refracted as it passes through the diamond due to its high refractive index. The unique internal structure of a diamond causes light to bounce off its facets multiple times, resulting in its characteristic brilliance and sparkle. White light entering a diamond can also split into its spectral colors due to the dispersion property of the diamond.

No, quartz diamond crystal and diamond settings in wedding rings are not the same. Quartz diamond crystal refers to a naturally occurring quartz crystal with diamond-like inclusions, while diamond settings in wedding rings are the metal prongs or setting that hold a genuine diamond in place. The two are different in composition and purpose.

Apparently, there are physics involved in this test. (You can read about more tests, below.)

On a clean, dry diamond, use a pin to drop a tiny amount of water on the table -- top -- of a cut diamond. If a diamond, the drop will maintain its shape; if not, the drop will flow off the table.

Diamond is an element because it is composed of carbon atoms arranged in a crystal lattice structure. Carbon is a chemical element found on the periodic table. Diamond's unique arrangement of carbon atoms gives it its characteristic hardness and luster.

While diamonds are extremely hard, they can be broken by other diamonds due to their hardness. When a force is applied to a diamond in a certain direction, it can cause it to fracture along its planes of weakness.

it formed in a formation where flourescent minerals were present and they became part of the carbon bond that makes up the diamond. it usually makes the diamond more valuable. the hope diamond is flourescent (blue?)

Blood diamonds are so named because they are mined in war zones and sold to finance armed conflict. The term highlights the human rights abuses and violence associated with the diamond trade in these regions.

Diamonds are weighed in carats.

For example, a one hundred fifty carat stone, which would be a very large stone is equal to 1.05821 ounces.

Most diamonds are less than one carat.

According to Wikipedia:

"Refraction is the change in direction of a wave due to a change in its speed."

So your question could also be "Why is control of the light wave through a diamond stone important to a diamond cutter?"

To maximize the brilliance/ shine/ flash/ fire of a diamond cut, a stone cutter must craft the stone facets in a geometric pattern that honours diamond's natural high refraction index (2.4), so that light can 'bounce' into, within and out of the stone to the highest degree possible.

Read more, below.

A Diamond can be broken if shot. An impact can break or chip a diamond regaurdless of how perfect the stone is. A diamond cannot be scratched however except by another Diamond.

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However, because of its value, you might not want to use a diamond for target practice. Instead, you could consider using a pea or a kernel of corn -- a diamond of either size would be quite valuable: up to tens of thousands of dollars if it were a 'perfect' stone.

Initials inside a shield are generally the maker's mark. From 1695 to 1720 it was more common to use the first two letters of the maker's name instead of the initials. Nowadays, three initials is the most popular method to identify the maker.

The "18K" part means the gold is 18-karat gold. The metal in the band is 75% gold and 25% a mix of other metals.

The 4 Cs of diamonds are cut, color, clarity, and carat weight. Cut refers to the diamond's proportions and how well it reflects light. Color ranges from colorless to yellow, with colorless diamonds being the most valuable. Clarity measures the presence of inclusions or blemishes within the diamond. Carat weight simply refers to the weight of the diamond.

The term "SI" indicates a clarity category, not a colour category.

For clarity, "SI" indicates slightly included, and is usually followed by a number, 1, 2, or 3. In this scale, fewer is better.

The best way to identify a diamond is to use a diamond tester. It is a handheld device which sends a thermal beam (heat) inside the stone and reads how fast the stone conducts the heat. Each mineral has a different heat conductive coefficient so this way you can tell a diamond from other stones.

However, a moissanite (a withe stone grown in the lab) has the same response as a diamond so a diamond tester may confirm the moissanite as a diamond.

Recently, a moissanite tester has been developed , so it can differentiate a diamond from a moissanite. Also a moissanite turns deep yellow when heated with a torch then turns back to white when cools down.

Also, it is possible that a trained eye can see a greenish color it the moissanite.

A diamond is much denser and harder than talc. Diamonds are made of carbon and are formed under high pressure, making them very hard, while talc is a soft mineral composed of hydrated magnesium silicate. In terms of size, a diamond is typically much smaller than a piece of talc due to their different compositions and structures.