How Diamonds Are Mined

We seldom think about how the diamonds we wear came to us. Natural diamonds, as opposed to synthetic diamonds or fake diamonds, are mined from the earth. There are currently two methods of mining diamonds: Pipe Mining and Alluvial Mining.

When pipe mining is used, the diamonds are extracted from the earth through volcanic pipes. These are not man-made pipes. These are natural pipes in the ground. Shanks are put into the ground next to the pipes, and tunnels are driven into the deepest parts of the pipe. The diamonds are not sorted out at the mine. Instead, huge rocks that are full of diamonds are brought out of the mine and moved to a screening plant for separation.

The Alluvial mining method is done in riverbeds and on beaches. Walls are built to hold back the water and the sand on the bank or beach is moved with a bulldozer until the level of earth that diamonds can be found in is reached. Again, the diamonds are not sorted here. Instead, the sand that contains the diamonds is bulldozed into trucks, and taken to screening plants.

Diamond Grading

You’ve been told that having a certificate or
a diamond grading report is important, and
as a responsible consumer, you get one –
unfortunately, you probably won’t understand
a word of what is on that diamond grading
report, unless you are a jeweler.

On the color grading scale, D, E, and F
mean that the diamond has no color. G, H,
and I means that it has very little color. J, K,
and L means that the diamond has a slight
yellow color. P, Q, R, S, T, U, V, W, and X
means that the diamond is a darker shade
of yellow. Z means that the diamond has a
fancy color – other than white or yellow.
On the color grading scale, D is the most
valuable, and X is the least valuable –
however diamonds that get a Z rating are
the rarest and most expensive diamonds
in the world.

There are many aspects to a grading report.
Figuring it all out can be very confusing. You
should talk to a jeweler you trust, and have
them explain everything on the diamond
grading report to you.

Diamond Scams

When it comes to diamonds, there are
numerous scams to avoid. Most scams are
minor, but there are some major ones that
come up from time to time concerning the
buying and selling of diamonds. Scams
occur simply because most people who buy
diamonds – for whatever reasons – don’t
know that much about diamonds. Therefore,
they are easily fooled.

A common scam that most jewelry stores
participate in is the Carat Total Weight scam.
The tag on the piece of jewelry, usually a ring,
only states the total carat weight of all
diamonds in the piece, instead of listing the
total weights separately for each diamond.
This leads consumers to believe that the main
diamond in the piece is actually bigger than it
is. Ask what the total carat weight of the center
stone is. Also beware of fractions. Jewelry
stores are allowed to round off diamond
weights. This means that if the jeweler tells
you that it is a ¾ carat diamond, it is
probably between ½ and ¾ carat – but
closer to ¾.

Jewelry stores often run ‘fluorescence’
scams to varying degrees. Referring to a
diamond as a blue-white diamond is such a
scam. A blue-white diamond sounds very
unique and special, but in fact, this type of
diamond is of lesser quality – even though
the jeweler will try to make you think you are
getting something special. Jewelry stores
also like to show their diamonds in bright
lights. Lights make diamonds shine. Ask
to see the diamond in a different, darker
type of lighting as well.

Some truly unscrupulous jewelers target
those who want appraisals on diamonds
that were given to them as gifts or that were
purchased elsewhere. They will try to tell you
that the diamond is worthless, or worth less
than it actually is worth – and offer to take it
off your hands or trade it for a much better
diamond, along with the cash to make up
the difference. This is called low balling.
Get a second, third, and even a forth opinion
before taking any action.

Another common dirty trick is to switch the
diamond you have chosen and paid for with
one of lesser quality and value when you
leave it to be set in a piece of jewelry, or
leave a diamond ring to be sized. The only
way to avoid this is to do business with one
trustworthy jeweler. Avoid jewelers that you
have not done business with in the past.

There are many more scams that jewelry
stores commonly pull on unsuspecting
consumers. Just use your best judgment,
and purchase your diamonds with the
utmost care and consideration.

How to Sell A Diamond

There are many reasons why you may want
to sell a diamond that you own. Perhaps
you’ve gotten divorced, or you are strapped
for cash. The reasons why don’t really matter
– getting the best possible price is what
counts! The way to obtain the best price
for the diamond is to not be in a rush. Slow
down, and carefully consider all of your
options – there are many.

First, have the diamond appraised. In fact,
have it appraised by two or three jewelers to
get an accurate idea of the diamonds value.
Tell the appraiser that you want the Rapaport
Value. This is the wholesale value of the
diamond, and it basically tells you the highest
price that you can sell your diamond for. If your
diamond has no certificate, you should
consider getting a certificate from GIA. This
may help you get a better price for the
diamond as well.

First, try to sell the diamond yourself, to
people you know. Friends and family
members may be interested. If you don’t have
any luck with friends or family members, you
should turn to outside sources. Absolutely
avoid pawn shops! A pawn shop will only offer
you about 10% of what the diamond is worth!
Also avoid offers of selling the ring on
consignment. There are many things that
can go wrong, and there is no shortage of
diamond scams – even in well known
jewelry stores.

If the diamond is important, you should
strongly consider auctioning it off through
one of the famous auction houses, such as
Christie’s or Sotheby’s. If it isn’t what is
considered an ‘important’ diamond or a
high-end diamond, you should try to sell it
to an individual using classified ads, or even
eBay. However, selling to an individual that
you do not know could put you in danger –
especially if the diamond is worth a lot of
money.

Your final option should be a jewelry store. It
is vital that you not let your diamond out of
your sight while in the jewelry store – you
might find that the diamond you walked in
with is not the same diamond that you walk
out with! The jeweler will try to tell you that
your diamond is of poor quality or low
weight. Inevitably, there will be some
problem with the diamond. This is where
your appraisal and/or certificate will come
in handy.

If the jeweler is fair, they will offer you
between 60% and 80% of the value of the
Rapaport Value. Do not accept anything less
than this. Again, do not let the diamond out of
your sight until you have been paid for it.

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.

Diamond Certificates

A diamond certificate is also known as a
Diamond Grading Report. This report comes
from the Gemological Institute of America
(GIA), and you should require this report
when you are purchasing a diamond.

With a diamond certificate, you can verify
the color, cut, carat, weight, and clarity of the
diamond. You don’t have to worry about a
diamond dealer telling you anything less than
the truth, because the certificate comes
from the GIA – not the dealer. You may be
required to pay for the certificate, but the
cost is usually low, and in many cases, it
will help you negotiate a better price on the
diamond – or keep you from purchasing a
lower quality diamond altogether.

If you buy a high quality diamond, and then
later decide to sell the diamond, you will
need to have the certificate, or you will have
a hard time selling it to someone else.
Furthermore, you can use the Diamond
Grading Report to look up the wholesale
value of the diamond in question. Use the
guide that is used by the diamond cutting
industry.

With the Certificate, or Diamond Grading
Report, there won’t be any doubts when you
are trying to purchase a diamond. You can
easily find out what the diamond is worth.
This will prevent you from overpaying, and it
can prevent a seller from under-charging as
well.

A copy of the Diamond Grading Report
should be given to your insurance company
as well, when you insure the diamond. This
provides absolute, unquestionable proof of
the value of the diamond should it be stolen
in the future. Insurance companies cannot
argue with the report.

Avoid diamond dealers who seem reluctant
to provide a certificate! Also avoid sellers
who tell you that a certificate diamond will
cost you more – the only additional cost
should be the cost of the certificate, which
is low. If the dealer doesn’t want to provide
a certificate, then you don’t want to do
business with that dealer.

Don’t accept certificates from Gemological
Laboratories other than GIA. There are many
fly-by-night Gemological labs these days, but
in the end, GIA has been established as the
most respectable and trustworthy – not to
mention oldest – of the lot. So avoid dealers
who don’t want to use GIA for certification
purposes as well.

Don’t buy an expensive diamond without
paying the extra cost of the certificate. If a
dealer tries to convince you to make the
purchase without the certificate, or if they
want to use a company other than GIA, you
can be sure that the dealer has probably
greatly inflated the price of the diamond –
they have something that they are hiding
from you.