How Diamonds Are Made
All diamonds are at least 990,000,000 years old, while many
diamonds reach up to 3.2 billion years old. Diamonds are formed
under the earths surface, under extremely hot conditions of
900-1300*C between 90 and 120 miles underneath the ground.
Diamonds are extracted from the earth by volcanic eruptions.
Diamonds are made out of carbon just as graphite is, which is
carbon when it reaches earths stable surface. To ensure that
diamonds do not transform into graphite, they must be
transported to the earth's surface in a very rapid manner.
Diamonds are very rare, as only 20% of all mined
diamonds are genuine. Diamonds are also the hardest gem on
the MOHS scale. Ironically, graphite, which is also made out of
carbon is the softest. This is due to the way the atoms in each
material are linked together. Diamonds can be found in many
places over the world, including the United States.
Diamonds come in different colors, including white, silver,
blue, yellow, green, brown and pink. In the traditional white
diamond, the one that is most valuable will have a slightly
bluish color, where the least valuable will be slightly yellow.
However, diamonds that are naturally a shade other than white,
such as yellow or green have their own unique attraction, and
value. Large pink diamonds are very rare, as well as very
popular, which makes them extremely expensive. Before a diamond
is cut, it will be in a cubic or octahedral shape. They are dull
in color, and only become shinny and beautiful after they are
cut. The value of a
diamond is decreased when there appears to be yellowing of
the stone, as well as cuts, nicks, blemishes or other flaws on
the uncut stone. Diamonds are cut in several different ways, all
of which will give the diamond a spectacularly different shine,
and color.