DGI 4C’s - More…

Additional Education

Since our goal as a leading gemological laboratory in the 21st century is to make the gemological world a bit more accessible for home consumers, we have decided to add additional education to the regular 4C’s.

Here you will be able to learn both about things that are directly related to your knowledge about your privet precious jewel or diamond, like what the hell is that weird criteria “Fluorescence” that appears in your report. and also about things that are related to the wider spectrum of the diamond world, like “Conflict Free Diamonds – The Kimberley Process”, where do diamonds come from?, and many other interesting things that are less known to most people about the facinating world of diamonds!

We will begin with the things in relations with your privet items gemological report:


How do I know that the DGI report is related to the Item I hold

The best way to know if the item youre holding is indeed related to your report is by a “Dia-Script”, a dia-script is a laser inscription on the diamonds girdle, anything could be inscribed on a diamond, in the DGI report what will appear is the name “DGI” in capital letters followed directly by the report number. Laser inscriptions require very expensive equipment, therefore they are very unlikely to be faked. you will also see the inscription inside the report on the right side with a picture, and the will also say on the “comments” section of the report: “Dia-Script of report number inscribed on girdle”.

If the certificate you hold does not have a “Dia-Script of report number inscribed on girdle” comment, the best thing you can is put the diamond on a scale to make sure that the weight is right. If the weight is wrong, it is important to know what is the deviation, since diamond scale are incredibly sensitive and require a veri sterile environment, they sometimes might have a small deviation of up to 1.5 points, higher than that is very unlikely.

If The deviation is higher than 2 points return to your dealer and demand a refund!

If the deviation is within 1-2 points, but you are still not certain, you can send the item back to us for final verification.

If you do not want to do so, you can ask a jeweler to look at the stone and the report, this is advised only if you trust this jeweler. Another thing you could try is look at the report and see if there are any special udentifying things in the stone, like laser drilling or maybe high or weird color fluorescence, if such a thing exists, you might try and put the stone under UV light to check fluorescence, or look at the stone with a magnifying loupe to try and see the laser drill inside. However, it is important to remember - only a certified expirienced gemologist can tell you if the stone is related to the report!

The most important thing of all, if the report says the grades are of high quality, and you hold a shining sparkling beautiful stone – than everything is probably fine, and you should be pleased with your high quality beautiful diamond


What does ” Fluorescence” means?

Fluorescence is a strange, yet common, phenomenon that may appear in diamonds, because of certain minerals that exist in some diamonds, they “glow” under UV light (such as “black light”). Some diamonds fluorescence may be very noticeable, while other may only have a slight hint of fluorescence glow.
We scale those differences in fluorescence in 4 grades:
- Very slight:  Only a slight hint of fluorescence glow under UV light
- Slight:  slightly more noticeable fluorescence glow under UV light
- Medium:  a noticeable fluorescence glow under UV light
- Strong:  very noticeable fluorescence glow under UV light

The fluorescence of the diamonds usually doesn’t affect the diamonds appearance. However, in some cases, if the fluorescence is strong, it might make the diamond look a bit cloudy under x10 magnification. In some cases the diamond may actually appear a bit whiter than its true color grade when you look at it from above, and in other cases it may appear to have a bit more noticeable color to it. One way or the other, the fluorescence of the diamond does not in any way affect its color or clarity grade.

*most fluorescent diamonds, in-fact almost all fluorescent diamonds, will glow in blue, but in rare cases, the diamond could glow in other colors, such as yellow or red, either way, the grades remain the same,  only with an additional color description. For example, if your diamond has medium fluorescent but it glows in yellow, instead of just saying “Medium” under the fluorescence criteria, the report will say “Medium Yellow”.


What Are Clarity Enhanced Diamonds

Clarity enhanced diamonds are completely natural diamonds that have been mined from the earth, just like every other natural diamond.

After being cut and polished to their final shape and size, these diamonds go through unique treatment to improve the clarity of the diamond. This treatment does not change any other property of the diamond except its clarity (even the carat weight remains exactly the same). The treatment is simply filling the fractures inside the diamond with a diamond-like material, so that the fractures will no longer be seen.

Since the original cost of the rough diamond material was that of a low-clarity grade, the price of the final clearer diamond, is also relatively low although it looks as good as the non-enhanced diamond having an equivalent clarity grade. This means you can receive a noticeably clearer diamond for prices which are virtually incomparable – reaching as little as 50% of the price of an untreated counterpart.


Conflict Free Diamonds – The Kimberley Process

As most people know many diamonds come from Africa, and in many countries in Africa diamonds were used to finance rebel forces wars against local governments, creating death destruction and meyham, and using prisoners, women and children as slaves to extract the rough diamonds. Thses diamonds are called “Blood Diamond”, “Hot Diamonds”, “War Diamonds” or “Conflict Diamonds”.

In December 2000, The UN General Assembly adopted a resolution supporting the creation of an international certification scheme for rough diamonds, and in 2002 the “Kimberley Process Certification Scheme” was created.

The Kimberley process certification is a joint governments, industry and civil society initiative ment to stop the rough diamonds that come from conflict zones from entering the legitimate trade. This means that every rough diamond shipment has to be certified as “Conflict Free”. This ment that all countries who want to be able to export diamonds extracted in their grounds had to create all the proper offices such as export, import and internal controls to handle the paper work and documentation of diamonds and had to commit to complete transparency and the exchange of statistical data. countries who participate in the process can only trade with other participating countries, thereby making it very difficult for conflict-diamonds to enter the legitimate trade.


What exactly is a diamond, and where does it come from?

A diamond is a mineral, created inside a Kimberlite rock, and formed in intense conditions of extreme preasure and heat in the crust of the earth. Diamonds can only be created in such conditions and only inside the rock, therefore making the diamonds very rare, as those conditions were.

The diamond is also a crystal mineral, and is in-fact the hardest metirial in nature. the hardness of minerals is scaled in the “Mohs Scale of mineral hardness” from 1 (softest) to 10 (hardest). in this scale, the diamond is a 10. the hardness of diamonds have been known since ancient times, and it is the source of its name.

The name “Diamond” comes from the ancient Greek word αδάμας – adámas which means “unbreakable”

Diamonds are also known for their beauty, and the way they sparkle and break the light. They are unique in the way they break the light inside them, making it very hard to almost impossible tofake a diamond.



Where in the world do diamonds come from?

As most people know… many diamonds come from Africa, in-fact, roughly half of the diamonds in the world come from Africa. Other main sources of diamonds are India, Russia and Brazil

Today approximately 130,000,000 Carats (26,000 Kg) of diamonds are mined every year around the world.

Diamonds were first discovered in India in the 9th century BC and India remained the only distributer of diamonds until the 18th century AD, when diamonds were discovered in Brazil. Diamonds were discovered in Africa (the biggest exporter of diamonds today) only in the late 19th century (1870). and only recently discovered in Russia, Canada and Australia.