Argye mine located in the Kimberley region
in the far north east of Western Australia.
Owned by Rio Tinto, this mine is the world’s
largest single producer of volume of
diamonds. However, due to low proportion
of gem quality diamonds it is not the value
leader. It does produce 90-95% of the
world’s supply of pink diamonds.
Diavik is also owned by Rio Tinto, located in
Canada it is a very large mine. It is located
north of Yellowknife and south of the Artic
Circle on an island. The island is connected
by an ice road. It is also an important part of
the regions economy employing more than
700 people and producing more than 8 million
carats annually.
Ekati diamond mine is owned by BHP
Billiton and located south of the artic circle
in the Northwest Territories of Canada.
The Ekati is Canada’s first operational
diamond mine. Diamonds mined here
are sold under the Aurias trade name
Authenticity is verified through Canada
Mark service. CanadaMark service is also
owned by BHP Billiton Diamonds, Inc.
Baken diamond mine is located along the
lower Orange River in South Africa. It is
owned and operated by Trans Hex. The
average size stone for 2004 was 1.29
carats. In 2004, this mine produced a
78.9 carat D color flawless diamond that
sold for more than 1.8 million dollars (US),
as well as a 27.67 pink diamond that was
sold for over 1 million US dollars.
Merlin is the second of only two diamond
mines in Australia. No longer operating it
was owned by Rio Tinto and sold to Striker
Resources, who has explored the
possibilities of reopening the mine.
Orapa is the world’s largest diamond mine.
It us located 240 Km west of
Francistown. The mine is owned by
“Debswana” which is a partnership
between DeBeers and the government of
Botswana. This mine operates 7 days a
week. It maintains pre primary and
primary schools for its employee’s children.
There is also a 100 bed hospital and game
park. This mine began production in 1971
and is the oldest mine owned by the
Debswana Company.
The Premier mine located in Cullinan, South
Africa produced the largest gem diamond
ever in 1905. The Cullinan Diamond
weighed 3,106.75 carats. This mine also
produced the Golden Jubilee diamond
which weighed 545.67 carats. This mine is
owned by the De Beers Company and was
renamed The Cullinan Diamond Mine in
2003 in celebration of its centennial.
Wednesday, July 9, 2008
What Are Dirty Diamonds?
A dirty diamond is one of two things: a rough
diamond, or a diamond that hasn’t been
cleaned in a while. Rough diamonds are
uncut and unpolished – hence, they are dirty.
But that type of dirty diamond will soon be
cut and polished and sitting in a beautiful
jewel box in a display case. Then someone
will purchase it, and before long, it will
become a dirty diamond once again.
Diamonds become dirty. When you wash
your hands with a diamond ring on, soap
scum clings to it. When you put on hand
lotion, it gets grease on it. Shower with your
diamond earrings or necklace, and again,
you get soap scum. In one short day, your
brand new diamond could be dirty!
Purchase an ultrasonic jewelry cleaner the
same day that you purchase your diamond
jewelry, and use it every single day, without
fail. The clarity of the diamond changes
when the diamond is dirty – it loses its
sparkle. By taking one minute each day to
clean your diamond jewelry, you can avoid
this, and your diamonds will never be dirty!
diamond, or a diamond that hasn’t been
cleaned in a while. Rough diamonds are
uncut and unpolished – hence, they are dirty.
But that type of dirty diamond will soon be
cut and polished and sitting in a beautiful
jewel box in a display case. Then someone
will purchase it, and before long, it will
become a dirty diamond once again.
Diamonds become dirty. When you wash
your hands with a diamond ring on, soap
scum clings to it. When you put on hand
lotion, it gets grease on it. Shower with your
diamond earrings or necklace, and again,
you get soap scum. In one short day, your
brand new diamond could be dirty!
Purchase an ultrasonic jewelry cleaner the
same day that you purchase your diamond
jewelry, and use it every single day, without
fail. The clarity of the diamond changes
when the diamond is dirty – it loses its
sparkle. By taking one minute each day to
clean your diamond jewelry, you can avoid
this, and your diamonds will never be dirty!
How Diamonds Are Cut
In their most natural form, diamonds are –
well – quite ugly. They have no luster or shine,
and in fact, look like nothing more than
broken glass. A diamond must be cut, and
then polished before it actually becomes a
thing of beauty.
Diamonds are cut with saws, into round
shapes. From the rounded shape, other
shapes may be cut, such as heart shapes
– but the shape is less important than the
quality of the cutting that is being done. If
the diamond is poorly cut, it will lose light,
and it will not sparkle and shine very well.
Each facet of the diamond must be
carefully cut into the geometrical shapes
that allow the diamond to sparkle and
shine, then the entire diamond is cut into
a specific shape, such as an emerald cut
or a princess cut diamond.
Once the cut is done, the diamond is put into
a dop, which resembles a cup with another
diamond – only a diamond is strong enough
to smooth the edges of another diamond.
Once the diamond has been cut and shaped,
and had the edges smoothed in the dop, it is
polished on a scaif or a diamond polishing
wheel.
well – quite ugly. They have no luster or shine,
and in fact, look like nothing more than
broken glass. A diamond must be cut, and
then polished before it actually becomes a
thing of beauty.
Diamonds are cut with saws, into round
shapes. From the rounded shape, other
shapes may be cut, such as heart shapes
– but the shape is less important than the
quality of the cutting that is being done. If
the diamond is poorly cut, it will lose light,
and it will not sparkle and shine very well.
Each facet of the diamond must be
carefully cut into the geometrical shapes
that allow the diamond to sparkle and
shine, then the entire diamond is cut into
a specific shape, such as an emerald cut
or a princess cut diamond.
Once the cut is done, the diamond is put into
a dop, which resembles a cup with another
diamond – only a diamond is strong enough
to smooth the edges of another diamond.
Once the diamond has been cut and shaped,
and had the edges smoothed in the dop, it is
polished on a scaif or a diamond polishing
wheel.
Synthetic Diamonds
The first synthetic diamonds were produced
by General Electric in 1954. A synthetic
diamond is basically a rock that has the
durability, refractive index and hardness of
a natural diamond – but it is made by man.
A synthetic diamond should not be
confused with stimulant diamonds, such as
glass, cubic zirconia, or moissanite.
Although the technology for synthetic
diamonds came into play in 1954, no
synthetic diamonds were ever seen on the
market until the 1990’s. This was due to the
fact that it took many years for General
Electric to produce a synthetic diamond that
could compare with the quality of a natural
diamond – and when they figured out how to
do it, they found that it cost more to produce
a synthetic diamond than it did to mine and
cut natural diamonds.
Finally, a small company by the name of
Gemesis Corporation figured out a way to
produce synthetic diamonds that were of the
same quality as natural diamonds, at a
cheaper price. Today, Gemesis produces
synthetic white diamonds, and colored
diamonds as well. These diamonds sell for
about 1/3 of the cost of a natural diamond,
but there is a shortage of them, and they are
hard to find. In fact, it seems that synthetic
diamonds are rarer than natural diamonds!
by General Electric in 1954. A synthetic
diamond is basically a rock that has the
durability, refractive index and hardness of
a natural diamond – but it is made by man.
A synthetic diamond should not be
confused with stimulant diamonds, such as
glass, cubic zirconia, or moissanite.
Although the technology for synthetic
diamonds came into play in 1954, no
synthetic diamonds were ever seen on the
market until the 1990’s. This was due to the
fact that it took many years for General
Electric to produce a synthetic diamond that
could compare with the quality of a natural
diamond – and when they figured out how to
do it, they found that it cost more to produce
a synthetic diamond than it did to mine and
cut natural diamonds.
Finally, a small company by the name of
Gemesis Corporation figured out a way to
produce synthetic diamonds that were of the
same quality as natural diamonds, at a
cheaper price. Today, Gemesis produces
synthetic white diamonds, and colored
diamonds as well. These diamonds sell for
about 1/3 of the cost of a natural diamond,
but there is a shortage of them, and they are
hard to find. In fact, it seems that synthetic
diamonds are rarer than natural diamonds!
All About the Clarity of Diamonds
Clarity is an important aspect of a diamond,
and it is important to know how to grade the
clarity of a diamond before you buy one. It is
actually quite easy to learn how to grade the
clarity of a diamond. There are basically two
things that you must understand: Diamonds
with visual inclusions and blemishes, and
those that are ‘eye clean’ meaning that there
are no inclusions or blemishes that can be
seen with the naked eye. From there, the
clarity of a diamond is further broken down
into subcategories.
Many people mistakenly think that diamond
clarity refers to how clear it is. This isn’t so.
Clarity actually refers to the internal and
external imperfections of the diamond. The
best diamonds, of course get a grade of FL
or IF – Flawless or Internally Flawless –
meaning that it is perfect. A grade of I-1, I-2
or I-3 means that the diamond is imperfect,
with a grade of I-3 being the worst.
Other grades are VVS1 and VVS2, which
means that the diamond is very, very slightly
imperfect; VS1 and VS2, meaning the
diamond is very slightly imperfect; SI-1 and
SI-2, which means that the diamond is
slightly imperfect.
and it is important to know how to grade the
clarity of a diamond before you buy one. It is
actually quite easy to learn how to grade the
clarity of a diamond. There are basically two
things that you must understand: Diamonds
with visual inclusions and blemishes, and
those that are ‘eye clean’ meaning that there
are no inclusions or blemishes that can be
seen with the naked eye. From there, the
clarity of a diamond is further broken down
into subcategories.
Many people mistakenly think that diamond
clarity refers to how clear it is. This isn’t so.
Clarity actually refers to the internal and
external imperfections of the diamond. The
best diamonds, of course get a grade of FL
or IF – Flawless or Internally Flawless –
meaning that it is perfect. A grade of I-1, I-2
or I-3 means that the diamond is imperfect,
with a grade of I-3 being the worst.
Other grades are VVS1 and VVS2, which
means that the diamond is very, very slightly
imperfect; VS1 and VS2, meaning the
diamond is very slightly imperfect; SI-1 and
SI-2, which means that the diamond is
slightly imperfect.
How to Spot A Fake Diamond
In this world of advanced technology it is
almost impossible to simply look at a
diamond and determine whether it is real or
not – especially if you don’t know much
about diamonds. There are some steps that
you can take to avoid buying a fake diamond,
however.
First, only deal with reputable jewelers, and
when you find a reputable jeweler, stick with
them. Avoid buying diamonds or other
jewelry from jewelers that you have never
dealt with before in the past. Ask to see the
certificate for the stone. If no certificate exists,
walk away.
Look at the setting that the stone is in. Fake
diamonds, such as zirconias, are usually set
in low quality metals. Take a close look at the
stone. Fake diamonds are not durable –
natural diamonds, on the other hand, are the
most durable stone on the planet. Look for
scratches or nicks.
After purchasing a diamond, take it to
another jeweler for appraisal. In fact, take it
to two or three other jewelers for an appraisal
to make sure that the appraisals are all fairly
close. If you find that you have purchased a
fake diamond, you may be accused of
making a switch when you return to the store
of your purchase; therefore, it is important to
have a certificate for the diamond. No two
stones are alike.
almost impossible to simply look at a
diamond and determine whether it is real or
not – especially if you don’t know much
about diamonds. There are some steps that
you can take to avoid buying a fake diamond,
however.
First, only deal with reputable jewelers, and
when you find a reputable jeweler, stick with
them. Avoid buying diamonds or other
jewelry from jewelers that you have never
dealt with before in the past. Ask to see the
certificate for the stone. If no certificate exists,
walk away.
Look at the setting that the stone is in. Fake
diamonds, such as zirconias, are usually set
in low quality metals. Take a close look at the
stone. Fake diamonds are not durable –
natural diamonds, on the other hand, are the
most durable stone on the planet. Look for
scratches or nicks.
After purchasing a diamond, take it to
another jeweler for appraisal. In fact, take it
to two or three other jewelers for an appraisal
to make sure that the appraisals are all fairly
close. If you find that you have purchased a
fake diamond, you may be accused of
making a switch when you return to the store
of your purchase; therefore, it is important to
have a certificate for the diamond. No two
stones are alike.
Famous Diamonds
Among the most well known diamonds is the
Hope. This 45.52 carat steel blue diamond
is currently on display at the Smithsonian.
The legends of the ill-fortune and curse
bestowed on the possessor of the Hope
Diamond are many. This diamond was
donated to the Smithsonian in 1958. The
Hope was originally a rather flat, blocky
110-carat rough.
The Dresden Green stands out among the
natural colored diamonds. It is the largest
green diamond in the world weighing
40.70 carats. This diamond is historic, large
and has a natural green color with a slight
blue overtone. These facts make it virtually
priceless.
The Conde Pink is a pear shaped and
weighs 9.01-carats. This pink diamond was
once owned by Louis XIII.
The Tiffany Yellow diamond a beautiful
canary-yellow octahedron weighing 287.42
in the rough (metric) carats discovered in
either 1877 or 1878 in South Africa. The
gem after cutting boasts the extraordinary
weight of 128.54 carats. And until recently,
was the largest golden-yellow in the world.
The Koh-I-Noor ( Mountain of Light ) is now
among the British Crown Jewels. This
diamond weighs 105.60 carats. First
mentioned in 1304, it is believed to have
been once set in Shah Jehan‘s famous
peacock throne as one of the peacocks eyes.
The Agra is graded as a naturally colored
Fancy Light Pink and weighs 32.34 carats.
It was sold for about 6.9 million in 1990.
Since this sale, it has been modified to a
cushion shape weighing about 28.15 carats.
The Transvaal Blue is pear cut. This blue
diamond weighs 25 carats. It was found in
the Premier Diamond Mine in Transvaal,
South Africa.
The Great Chrysanthemum was discovered
in the summer of 1963, in a South African
diamond field. This 198.28-carat fancy
brown diamond appeared to be a light
honey color in its rough state. However,
after cutting, it proved to be a rich golden
brown, with overtones of sienna and burnt
orange.
The Taylor-Burton Diamond is a pear-shaped
69.42 carat diamond. Cartier of New York
purchased this diamond at an auction in
1969 and christened it "Cartier." The next
day Richard Burton bought the diamond
for Elizabeth Taylor. He renamed it the
"Taylor-Burton”. In 1978, Elizabeth
Taylor put the diamond up for sale.
Prospective buyers had to pay $2,500
each to view the diamond to cover the costs
of showing it. Finally, in June of 1979, the
diamond was sold for nearly $3 million dollars.
Hope. This 45.52 carat steel blue diamond
is currently on display at the Smithsonian.
The legends of the ill-fortune and curse
bestowed on the possessor of the Hope
Diamond are many. This diamond was
donated to the Smithsonian in 1958. The
Hope was originally a rather flat, blocky
110-carat rough.
The Dresden Green stands out among the
natural colored diamonds. It is the largest
green diamond in the world weighing
40.70 carats. This diamond is historic, large
and has a natural green color with a slight
blue overtone. These facts make it virtually
priceless.
The Conde Pink is a pear shaped and
weighs 9.01-carats. This pink diamond was
once owned by Louis XIII.
The Tiffany Yellow diamond a beautiful
canary-yellow octahedron weighing 287.42
in the rough (metric) carats discovered in
either 1877 or 1878 in South Africa. The
gem after cutting boasts the extraordinary
weight of 128.54 carats. And until recently,
was the largest golden-yellow in the world.
The Koh-I-Noor ( Mountain of Light ) is now
among the British Crown Jewels. This
diamond weighs 105.60 carats. First
mentioned in 1304, it is believed to have
been once set in Shah Jehan‘s famous
peacock throne as one of the peacocks eyes.
The Agra is graded as a naturally colored
Fancy Light Pink and weighs 32.34 carats.
It was sold for about 6.9 million in 1990.
Since this sale, it has been modified to a
cushion shape weighing about 28.15 carats.
The Transvaal Blue is pear cut. This blue
diamond weighs 25 carats. It was found in
the Premier Diamond Mine in Transvaal,
South Africa.
The Great Chrysanthemum was discovered
in the summer of 1963, in a South African
diamond field. This 198.28-carat fancy
brown diamond appeared to be a light
honey color in its rough state. However,
after cutting, it proved to be a rich golden
brown, with overtones of sienna and burnt
orange.
The Taylor-Burton Diamond is a pear-shaped
69.42 carat diamond. Cartier of New York
purchased this diamond at an auction in
1969 and christened it "Cartier." The next
day Richard Burton bought the diamond
for Elizabeth Taylor. He renamed it the
"Taylor-Burton”. In 1978, Elizabeth
Taylor put the diamond up for sale.
Prospective buyers had to pay $2,500
each to view the diamond to cover the costs
of showing it. Finally, in June of 1979, the
diamond was sold for nearly $3 million dollars.
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