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.

Selecting Diamonds

Diamonds are graded for certification by laboratories using grading criteria. Four of these criteria are critical to understand when making a diamond purchase or investment. Known as the “Four C’s” these criteria are: color, cut, clarity and carat.

Color is the result of the composition of a diamond and it does not change. When a jeweler is describing the color of a diamond they are referring to the presence or absence of color in white diamonds. Because a diamond with no color allows maximum light to pass through, colorless diamonds are preferred for their sparkle.

Cut refers to a diamonds reflective quality. Most diamonds are cut with 58 facets. The
brilliance of diamonds is heavily dependent on the cut. The different angles and the finish of a diamond determine its ability to reflect light and cause its brilliance and fire. Remember that the cut of a diamond can have an impact on its durability as well as its beauty. Some cutting faults can make a diamond prone to breakage. A diamond
that is cut too thin can also cause light to leak out of the back and the diamond will
lose some of the sparkle and appear not to shine. So, as you can see the Cut is probably the most important of the Four C’s.

During the formation process, inner flaws, or inclusions occur in most diamonds. The
number and size of these inclusions determine what is referred to as the clarity of a diamond. Diamonds that are clear create more brilliance and therefore are rarer and highly priced. To be considered “flawless”, a diamond must have no surface or internal imperfections visible upon being viewed by a skilled diamond grader using 10 power magnifications.

Carat is the unit of weight by which diamonds are measured. One carat is equal to 200
milligrams. A carat is divided into 100 segments called points. 150 points would equal one and a half carats.

When you go to the store to make that all important diamond purchase, do not be shy! Ask questions, get the answers needed to make an informed purchase. Shopping for certified diamonds enables you to make an informed selection. Knowing the “four C’s” allows you to comparison shop and purchase the best diamond at a fair price. But, before making a purchase, shop around and decide what shapes and styles really appeal to you. Enjoy your diamond for years to come!

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!

About 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 slightlyimperfect; VS1 and VS2, meaning the diamond is very slightly imperfect; SI-1 and SI-2, which means that the diamond is slightly imperfect.

Are Diamonds Really Rare?

When you walk into a jewelry store and see all the diamonds in all of the various settings that are for sale, it is difficult to realize that diamonds are indeed rare. Most people don’t even stop to consider how that diamond came to be sitting in that jeweler’s case! There is quite a bit of work that is done before a diamond is ready to sell to the general public!

For every one million diamonds that are mined, only one will be found that is a quality one caret diamond. In order to find a two caret diamond, about five million diamonds must be mined. More than two hundred tons of ore must be mined to find one small diamond, and even then, more than 80% of the diamonds that are mined are only good for industrial use, such as diamond drill bits.

So, the next time you visit your local jewelry store, ask to see the one carat diamonds.
You should look at this diamond with new appreciation – knowing that it truly is one
in a million!

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.