Rough Diamonds

We purchase, sell and manufacture Rough Diamonds

Rough Diamonds refer to diamonds which are still in their natural raw state after being removed from beneath the earth. The rough diamonds that eventually become the gem quality diamonds that we sell, represent less than 15% of all diamonds that are mined. The remaining are sold as industrial diamonds.

Irresistible Rough Diamonds purchases rough from local tender houses who accumulate stones from various mines throughout Africa. These are sold to local and international manufacturers. 
These tenders facilitate mass economic activity for the country, and initiate global trade competitiveness. Purchasing rough diamonds is not an easy task, not only are you competing with trade professionals from the world, you are also taking huge risks. A small miscalculation, or lapse of concentration when analysing the stone’s features can cause a complete miscalculation of cost, meaning they will be unable to sell off or manufacture and sell the polished diamond.

Loss of money can also result from uncontrollable factors which are inherent in the natural form of the stone. Rough diamonds can explode during manufacturing, can change colour, and can have impurities that worsen with the progression of manufacturing. For example, a rough stone with a “glets” (a crack within the stone), may “run” when the pressure of the diamond cutting wheel is placed on it. The stone as a result of this impurity worsening, cracks in half and the owner incurs a complete loss on that stone.

The rough industry is extremely risky, capital intensive, competitive and costly,  yet the fascination and allure of the rough diamond trade still keeps the world on the edge of its seat, looking for the prime stone, the best shape, the special colour, the big find.


Octahedron, Dodecahedron, Macle & Cubed

Rough diamonds form in the cubic crystal system and are singly refractive. This cubic crystal structure gives rough diamonds their distinctive shape formation.

The most common gem-quality diamond shape is the Octahedron, this shape of rough looks as if two pyramids have been joined together, and it often yields the best polished diamond.

The second most common formation is the Dodecahedron, which is a fairly rounded shape. This formation is said to be formed from the Octehedron dissolving within the earth, thus it is possible to find rough diamonds that are almost a combination in appearance between these two shapes.

Other distinctive shapes include Macle – and Cubed – shaped crystals. A Macle is a triangular diamond which is fairly flat. A cube-shaped crystal is exactly as its name describes – a cube shaped diamond. Both these rough diamond formations have a relatively low yield in polished.


Most rough crystals have features called etch markings that occur during the formation of the diamond. These etch markings can be found on the crystal face in the form of parallel lines radiating from a central tiny triangular shape called a Trigon.

Trigons and the paralled growth marks on the rough diamond are depressions into the surface of the stone as a result of pressure, and contact with hot molten rock. Trigons are an important feature on rough diamonds because they help to separate diamonds from stimulants.

Conflict Diamonds & The Kimberley Process

In the past, rough diamonds have played a role in the funding of violent conflict throughout Africa. Rebel forces would illegally obtain rough diamonds and sell them to raise money to further their campaign of brutal control on their besieged nations.

The Kimberley Process was enacted by the global diamond industry with the United Nations, governments, and NGOs to implement procedures to eliminate conflict diamonds from the marketplace. This process involves the rough being taken from the mine, directly to Government diamond offices, where their source is checked and confirmed as conflict-free. The inspected gems are sealed in tamper-resistent containers, issued with a “KPC certificate” of a unique serial number, and is then shipped to the cooperating countries.

Upon arrival at the country, the gems are inspected by the government customs office for the certificate, and for any tampering of the sealed parcel. Only after the shipment has been confirmed to be tamper-free, the officials approve the release of the diamonds into the country. Every time the rough diamond changes hands thereafter, the invoice is to bear the statement that the diamonds were purchases from legitimate sources, free from conflict diamonds. Only governments that follow the Kimberley Process procedures are allowed to legitimately export and import rough diamonds.

Furthermore, no individual or company is legally allowed to be in possession of rough diamonds without a Rough Diamond Dealers or Rough Diamond Beneficiation licence issued by the South African Diamond And Precious Metals Regulator.

African Roots Trademark

The journey of our diamonds from rough to polished creating an authentic and ethically sourced African Diamond.


The Purpose of our Trademark

The establishment of the African Roots Trademark was founded with the principal of creating a brand of diamond that is credible. 

An African Root Diamond has gone through a process of authentication from rough to polished ensuring that the journey of the diamond can be seen for the benefit of the consumer who purchases it. Reassuring the consumer that their diamond is in fact – reliably sourced, ethical and of African origin.

These diamonds are lazer inscribed on their girdle with the African Root Logo. Only diamonds with a complete rough to polished trace, are given the African Roots Logo inscribed on their girdle, ensuring the credibility of the product.

Our credibility is secured by means of the process involved in the GIA Origin Report. Our trademark is a testament to a certain quality of rough diamonds sourced – African rough.

Our purpose is to supply the world with a piece of Africa that they can take home with them, the African Diamond. Rich in history, quality and originality.

Through our African Roots brand we are making a commitment to our customers that our diamonds and business practices support and empowers our diamond community, we commit to having our diamonds do good and ultimately ensuring our customers confidence in their choice of diamond.

Rough Diamond Journey Irresistible Rough Diamonds Rough Diamond Journey Irresistible Rough Diamonds

The Rough Process

The process involved in the production of rough diamonds.

Claudia Bompani Irresistible Rough Diamonds Rough Tenders


We attend tenders to view, bid and purchase rough diamonds.  Tenders are extremely competitive as rough buyers  from around the world, who belong to huge companies, fly in to to attend.

Sarine 3 D Planning Irresistible Rough Diamonds


Once purchased, the rough goes through a planning process on a machine called a Sarine. This machine maps the stone and forcasts the potential polished diamond yield. There is a manual process of inputting each individual stone’s inclusions in the digital rendering, in order to plan the cutting approach and also to correctly estimate the potential polished yield.

Irresistible Rough Diamonds Manufacturing


Once a plan has been mapped for the diamond, the polishing process begins. 

Oval Cut Irresistible Diamonds


Upon completion of the diamond manufacturing, the final product is reassessed to estimate the quality grading. It is then sent for certification. 

(Please note the process for African Root Diamonds with GIA Origin certificates is slightly different – See below)

GIA Origin Certificate

“Consumers now, more than ever, have a heightened awareness of sustainably and ethically sourced products. The GIA Diamond Origin Report uses scientific evaluation to provide confirmation of a diamond’s geographic origin.” – GIA 

Diamond Traceability based on Science

The GIA Diamond Origin Report is a certificate for the diamond that states the country of origin where that polished diamond was specifically sourced. 

GIA has been at the forefront of the industry in science and technology. They have used their expertise in developing both of these aspects which analyse the external and internal properties of the rough diamond submitted to them.

After the rough diamond has been polished and resubmitted to GIA for grading, GIA then matches the polished diamond properties to its original rough diamond analysis, confirming that the polished diamond – is in fact from that same piece of rough. 

By this process GIA is then able to confirm that the polished diamond is from the specific geographic region of the rough. 

GIA Origin Report Link
GIA Origin Certificate Irresistible Rough Diamonds

Proccess of being awarded The Origin Report

There are a few simple steps involved in being awarded this certificate, as you will see the process is what gives this report credibility. It allows for no breaches in the supply chain that could potentially misrepresent to the consumer the origin of their diamond.


Rough is purchased from Sources

Rough is purchased from Tender Houses.
Stones are sealed by the sellers with specific documentation such as the KPC Certificate and Invoice from seller.


Rough is submitted to GIA

GIA accepts SEALED rough parcel from the purchaser with accompanying documents.
Opened parcels are rejected and will not be accepted, nor awarded a GIA Origin Report.
Parcels will only be accepted if the GIA Representative is present upon opening.


Rough is analysed by GIA

The rough stones are analysed externally and internally by specialised equipment.
A video mapping of the stone is recorded for future authentication.


Rough is given back to the manufacturer for polishing

The rough parcel is given back to the purchaser who further polishes the diamond into the final polished diamond product.


Polished diamond is now resubmitted to GIA for Origin grading report

On compeletion of manufacturing the stone, the polished diamond is resubmitted to GIA for a Diamond Origin Report, which will reanalyse and grade the polished stone.


Polished diamond is awarded Origin Report and returned to manufacturer

If the polished diamond is confirmed to match the analysis of the rough diamond, the Origin Report is awarded, stating the diamond’s grading and source of origin by country.

Why purchase a diamond with an Origin Report?


This certificate helps distinguish between natural diamonds and lab-grown diamonds. Lab-grown diamonds have now been prohibited as being marketed as “Natural” Lab-Grown diamonds, because those diamonds are just that – generic, mass produced, man-made diamonds which defeat the definition of Natural.


There has been much controversy in recent years regarding he diamond mining industry. Questions of the impact these huge mines have on the environment and the communities have been asked.

Mining companies support the Natural Diamond trade – that is their purpose, to unearth these raw gems, and in this process there is a large impact on the communities. The diamond mining industry is a massive economic component of the country. They support communities largely by building schools, houses and create employment in rural areas. 

Critics question the justification of economic activities for the present versus the long-term impact on the environment. While diamond mining does effect a large portion of land, governments implement strict conditions on the companies, which include rehabilitation of the the environment. This can involve planting of trees, purchasing of large portions of land to isolate as nature reserves, and lastly keeping their carbon footprint low.

In an independant report of the diamond industry, evaluators reported that natural diamond mining and manufacturing have  69% less carbon emissions per-carat than lab-grown. Click below to view the report.

Total Clarity Report

The responsibilty is placed on the supply chain of the diamond industry to facilitate a relationship of trust with the consumer.

The diamond Origin Report encompasses the industry’s efforts to be transparent with the consumer. This report gives the consumer peace-of-mind in knowing that they are not supporting “blood-diamonds”, or diamond generics.

It allows the consumer to be emotionally connected with their diamond as they come to know its journey and story.

The consumer is able to walk away knowing that their purchase has supported not only trade and industry, but communities and environments.

Finally the GIA Origin Report gives credibility to the supplier, and confidence for the consumer in their supplier.

GIA Origin Report App

Accompanied by the Origin Report is a free App to be downloaded by the consumer. Upon typing in the report number of their diamond in the search engine, the diamond’s history of origin is displayed.

This App is a simple and convenient way for suppliers to share the story of the diamond with the consumer.

The consumer is able to walk away not only with a beautiful stone in hand but also a tangible reference to their diamond’s journey.

A booklet form of the diamond’s history is also available upon special request.


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