Aug 28, 2015

[INFOGRAPHIC] Top 10 largest diamonds ever discovered

De Beers
South Africa
3 min
[INFOGRAPHIC] Top 10 largest diamonds ever
It’s unanimous: the world loves diamonds. These sparkly jewels have become...

It’s unanimous: the world loves diamonds. These sparkly jewels have become a staple of wealth, commitment and beauty, as told through catchy slogans like ‘diamonds are forever’ and the notion they’re a girl’s best friend (this one is a fact). 

Because the majority of extracted diamonds are small in stature, we decided to showcase the top 10 largest ever.

10. The Millennium Star – 203.04 carats

Discovered in the Democratic Country of Congo in 1990, this 203.04 carat diamond was purchased by De Beers soon after. It took Ascot Diamonds, a member of the Steinmetz Group of Diamond Companies, roughly three years to cut and shape.

The late De Beers Chairman Harry Oppenheimer famously stated: "it is the most beautiful diamond I have ever seen."

9. The Red Cross – 205.07 carats

Renown for its canary yellow coloring, Red Cross diamond was discovered in South Africa at De Beers mine in 1901. This massive, 205.07 carat cushion shaped gem is one of the rarest diamonds on this list.

8. The De Beers – 234.65 carats

With a name like De Beers, you know it’s a winner. Discovered in South Africa in 1888, the De Beers is the largest diamond recovered at its Kimberly complex. Weighing 234.65 carats, the De Beers is the eighth largest diamond in the world.

• Related content: [INFOGRAPHIC] A Clear Look at Diamonds: How They're Formed, Mined and Sold

7. The Jubiliee – 245.35 carats

Recovered in 1895 at the Jagersfontein Mine in South Africa, the Jubiliee diamond was originally known as the Reitz Diamond in honor of Francis William Reitz, then president of the Free State province of South Africa.

6. The Centenary – 273.85 carats

Another De Beers diamond, the Centenary was found on July 17 1986 while being processed by the electric X-ray recovery system at the Premier Mine. The original stone had 599 carats. The current owner, location and value of the Centenary diamond is unknown but it was insured for $100 million in 1991.

5. The Spirit of de Grisogono – 312.24 carats

At 312.24 carats, the Spirit of de Grisogono is the world’s fifth largest diamond and the world’s largest black diamond. Discovered in western Central African Republic, the black beauty is now set in a white gold ring surrounded by 702 white diamonds weighing 36.69 carat.

4. The Cullinan II – 317.4 carats

The Cullinan II is the second largest stone cut from the mammoth 3,106 carat Cullinan Diamond. It was placed by King Edward in the Sovereign’s Royal Sceptre as part of the Crown Jewels. Estimated at over $400 million, the Culinan II diamond is on display in the tower of London.

3. The Incomparable – 407.48 carats

In a tale of fate, the Incomparable was found in 1984 by a small child that was playing next to a pile of debris from the nearby MIBA Diamond Mine in the Democratic republic of Congo. The value of the diamond is estimated to be worth $20 million.

2. The Cullinan I – 530.20 carats

Nicknamed the Star of Africa, the Cullinan I is the largest of nine large stones cut from the original Cullinan Diamond. The pear shaped diamond weighs 530.20 carats and is the second largest diamond ever discovered.

1. The Golden Jubilee – 545.67 carats

The Golden Jubilee is the Holy Grail of diamonds. Discovered in 1985 in South Africa, this 545.67 carat diamond is the largest cut and faceted diamond in the world. 

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Jan 30, 2019

Deloitte predicts industry transformation - Tracking the Trends 2019 report

Daniel Brightmore
3 min
Deloitte reveals top ten trends transforming mining in annual Tracking the Trends report
Deloitte has published the eleventh edition of its an...

Deloitte has published the eleventh edition of its annual report on the mining industry. Tracking the Trends identifies the top ten trends transforming the future of mining in 2019

The Deloitte report endeavours to provide the mining industry with insights it can leverage to support its continued quest for productivity, capital discipline, strategic development and sustainable growth.

Philip Hopwood, Deloitte’s Global Leader - Mining & Metals, commented: “It appears that the mining industry is poised for greater growth than it’s seen in a decade, but today’s market realities are very different than those of the past. We’re now dealing with geopolitical tensions in the form of trade wars and tariff concerns, as well as looming asset shortages. Rising commodity prices should fuel expansion, but could also result in a return of inflation and the costs that go with it, eventually eating into margins. 

Disruption and volatility has become the new normal and the pace of change is outpacing our ability to adapt. This makes it imperative for mining companies to clarify how they plan to drive value into the future and how they intend to respond when prices inevitably drop again.” 

Related stories:

EY survey finds losing 'licence to operate' is the biggest risk to the industry in 2019

Predicting the disruptors of tomorrow’s mining industry: Deloitte’s tracking the trends 2018

Renewables the key to energy cost savings and competitive edge says Deloitte

Here are the key messages provided by the 2019 report:

  • Disruption and volatilitymake it imperative for mining companies to clarify how they plan to drive value into the future and how they intend to respond when prices inevitably drop again. To thrive into the future, mining companies will need to challenge the status quo by soliciting a diversity of opinions and taking the risk to do things differently. 


  • Technology and artificial intelligence (AI) will play akey role, not only in helping companies envision future scenarios, but in identifying risks at an enterprise level and transforming the supply chain. Moreover, advances in finance platforms, sensor technology, autonomous vehicles, cloud- based solutions, and analytics are paving the way for the design of a digital mine. 


  • Understanding the needsand perceptions of people both inside and outside the organization will be critical. Companies must build amore diverse workplace and address succession planning, while fostering loyalty and retention among existing employees. At the same time companies must do more outreach to local communities, governments, and consumers so they can be more transparent and receptive. 


Top Ten Trends Transforming the Future of Mining:

  1. Rethinking mining strategy - Embedding the discipline to deliver measurable value across the cycle 
  2. The frontier of analytics and artifcial intelligenceMoving up the maturity curve 
  3. Managing risk in the digital era - Exploring a new approach to controls and risk management 
  4. Digitizing the supply chain - Why innovation requires integration 
  5. Driving sustainable shared social outcomes - Finding value beyond compliance 
  6. Exploring the water-energy nexus - Making the case for a systematic approach 
  7. Decoding capital projects - Learning from past mistakes
  8. Reimagining work, workers, and the workplace - A blueprint for the future 
  9. Operationalising diversity and inclusion programs - From theory to practice 
  10. Demanding provenanceEVs and battery minerals provoke the desire for provenance 

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