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The World’s Most Famous Diamonds

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The World's Most Famous Diamonds

The World’s Most Famous Diamonds

The stories and histories of the most famous diamonds

You may have heard of the Cullinan Diamond or the Hope Diamond before, but do you know the stories behind these legendary finds?

Today’s infographic looks at the history and characteristics of six of the most famous diamonds.

A Diamond Primer

Every diamond is unique, and as a result the value of a particular diamond is partially determined by the eye of the beholder. The diamond industry generally uses a set of criteria called the Four C’s to help evaluate the potential value of a diamond: Clarity, Cut, Carats, and Color.

Most diamonds found have major deficiencies in one or more of the above categories. For example, while a diamond may be clear and large in size, it may have a less desirable color and shape. In a previous infographic, we explain the importance of these characteristics in more depth, and we’ve also previously posted on the significance of rare-colored diamonds.

The most famous diamonds in the world are exceptionally rare: they tend to excel in all four of the above categories. They are a desired color and shape, have great clarity, and are giant in size.

The Most Famous Diamonds

The stories behind six of the most famous diamonds in brief:

The Cullinan Diamond: Perhaps the most well-known, the Cullinan Diamond was discovered in 1905 in South Africa. Weighing in at 3,106.75 carats, the Cullinan is the largest rough gem-quality diamond ever discovered. The diamond was ultimately cut into nine smaller stones including the 530.20 carat Star of Africa, which is valued at over $400 million alone.

The Hope Diamond: The Hope Diamond is a grayish-blue diamond that was discovered in India at an unknown date. It has a long history, in which it changed hands numerous times between countries and eventually ended up at the Smithsonian Institute in Washington, D.C.

The Centenary Diamond: The Centenary Diamond is considered to be one of the most flawless diamonds, both internally and externally. Discovered in South Africa, it was unveiled in its final form by De Beers in 1991. The current owner is unknown.

The Regent Diamond: This pale blue diamond was discovered by a slave in India in 1698. After eventually making it to the crowns of Louis XV and Louis XVI in France, it is now on display at the Louvre in Paris and weighs 140.64 carats.

The Koh-i-Noor Diamond: Meaning “Mountain of Light” in the Persian language, this diamond was discovered at a mine in India. It is of the finest white color, and made its way from a Hindu temple eventually to the Crown of Queen Elizabeth in 1850.

The Orlov Diamond: Discovered in India at an unknown date, this jewel retains its traditional Indian rose-style cut. The Orlov, which weighs in at 189.62 carats and is white with a faint bluish-green color, now rests in the Kremlin in Russia.

The world’s most famous diamonds all have intriguing stories behind their discoveries. However, a diamond prospector doesn’t need to find a diamond to strike it rich: check out the infographic story of Diamond Fields, a diamond company that ended up finding and auctioning off one of the world’s richest nickel deposits for billions.

Original graphic by: Gear Jewellers

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Explainer: What Key Factors Influence Gas Prices?

To help understand what’s happening at the pump, it’s important to first know what key factors dictate the price of gas.

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Explainer: What Key Factors Influence Gas Prices?

Across the United States, the cost of gas has been a hot topic of conversation lately, as prices reach record-breaking highs.

The national average now sits at $5.00 per gallon, and by the end of summer, this figure could grow to $6 per gallon, according to estimates by JPMorgan.

But before we can have an understanding of what’s happening at the pump, it’s important to first know what key factors dictate the price of gas.

This graphic, using data from the U.S. Energy Information Administration (EIA), outlines the main components that influence gas prices, providing each factor’s proportional impact on price.

The Four Main Factors

According to the EIA, there are four main factors that influence the price of gas:

  • Crude oil prices (54%)
  • Refining costs (14%)
  • Taxes (16%)
  • Distribution, and marketing costs (16%)

More than half the cost of filling your tank is influenced by the price of crude oil. Meanwhile, the rest of the price at the pump is split fairly equally between refining costs, marketing and distribution, and taxes.

Let’s look at each factor in more depth.

Crude Oil Prices

The most influential factor is the cost of crude oil, which is largely dictated by international supply and demand.

Despite being the world’s largest oil producer, the U.S. remains a net importer of crude oil, with the majority coming from Canada, Mexico, and Saudi Arabia. Because of America’s reliance on imports, U.S. gas prices are largely influenced by the global crude oil market.

A number of geopolitical factors can influence the crude oil market, but one of the biggest influences is the Organization of the Petroleum Exporting Countries (OPEC), led by Saudi Arabia.

Established in 1960, OPEC was created to combat U.S. dominance of the global oil market. OPEC sets production targets for its 13 member countries, and historically, oil prices have been linked to changes in OPEC production. Today, OPEC countries are responsible for about 60% of internationally traded petroleum.

Refining Costs

Oil needs to be refined into gasoline before it can be used by consumers, which is why refining costs are factored into the price of gas.

The U.S. has hundreds of refineries across the country. The country’s largest refinery, owned by the Saudi Arabian company ​​Saudi Aramco, processes around 607,000 barrels of oil per day.

The exact cost of refining varies, depending on a number of factors such as the type of crude oil used, the processing technology available at the refinery, and the gasoline requirements in specific parts of the country.

In general, refining capacity in the U.S. has not been keeping up with oil demand. Several refineries shut down throughout the pandemic, but even before COVID-19, refining capacity in the U.S. was lagging behind demand. Incredibly, there haven’t been any brand-new refining facilities built in the country since 1977.

Taxes

In the U.S., taxes also play a critical role in determining the price of gas.

Across America, the average gasoline tax is $0.57 per gallon, however, the exact amount fluctuates from state to state. Here’s a look at the top five states with the highest gas taxes:

RankStateGas tax (per gallon)
1California$0.87
2Illinois$0.78
3Pennsylvania$0.77
4Hawaii$0.77
5New Jersey$0.69

*Note: figures include both state and federal tax

States with high gas taxes usually spend the extra money on improvements to their infrastructure or local transportation. For instance, Illinois doubled its gas taxes in 2019 as part of a $45 billion infrastructure plan.

California, the state with the highest tax on gas, is expecting to see a rate increase this July, which will drive gas prices up by around three cents per gallon.

Distribution and Marketing Costs

Lastly, the costs of distribution and marketing have an impact on the price of gas.

Gasoline is typically shipped from refineries to local terminals via pipelines. From there, the gasoline is processed further to ensure it meets market requirements or local government standards.

Gas stations then distribute the final product to the consumer. The cost of running a gas station varies—some gas stations are owned and operated by brand-name refineries like Chevron, while others are smaller-scale operations owned by independent merchants.

The big-name brands run a lot of advertisements. According to Morning Consult, Chevron, BP PLC, Exxon Mobil Corp., and Royal Dutch Shell PLC aired TV advertisements in the U.S. more than 44,495 times between June 1, 2020, and Aug. 31, 2021.

How Does the Russia-Ukraine Conflict Impact U.S. Gas Prices?

If only a fraction of America’s oil comes from Russia, why is the Russia-Ukraine conflict impacting prices in the U.S.?

Because oil is bought and sold on a global commodities market. So, when countries imposed sanctions on Russian oil, that put a squeeze on global supply, which ultimately drove up prices.

This supply shock could keep prices high for a while unless the U.S. falls into a recession, which is a growing possibility based on how recent data is trending.

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Real Assets

Mapped: The 10 Largest Gold Mines in the World, by Production

Where in the world are the largest gold mines?

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map of the 10 largest gold mines in the world

The 10 Largest Gold Mines in the World, by Production

Gold mining is a global business, with hundreds of mining companies digging for the precious metal in dozens of countries.

But where exactly are the largest gold mines in the world?

The above infographic uses data compiled from S&P Global Market Intelligence and company reports to map the top 10 gold-producing mines in 2021.

Editor’s Note: The article uses publicly available global production data from the World Gold Council to calculate the production share of each mine. The percentages slightly differ from those calculated by S&P.

The Top Gold Mines in 2021

The 10 largest gold mines are located across nine different countries in North America, Oceania, Africa, and Asia.

Together, they accounted for around 13 million ounces or 12% of global gold production in 2021.

RankMineLocationProduction (ounces)% of global production
#1Nevada Gold Mines🇺🇸 U.S. 3,311,0002.9%
#2Muruntau🇺🇿 Uzbekistan 2,990,0202.6%
#3Grasberg🇮🇩 Indonesia 1,370,0001.2%
#4Olimpiada🇷🇺 Russia 1,184,0681.0%
#5Pueblo Viejo🇩🇴 Dominican Republic 814,0000.7%
#6Kibali🇨🇩 Democratic Republic of the Congo 812,0000.7%
#7Cadia🇦🇺 Australia 764,8950.7%
#8Lihir🇵🇬 Papua New Guinea 737,0820.6%
#9Canadian Malartic🇨🇦 Canada 714,7840.6%
#10Boddington🇦🇺 Australia 696,0000.6%
N/ATotalN/A13,393,84911.7%

Share of global gold production is based on 3,561 tonnes (114.5 million troy ounces) of 2021 production as per the World Gold Council.

In 2019, the world’s two largest gold miners—Barrick Gold and Newmont Corporation—announced a historic joint venture combining their operations in Nevada. The resulting joint corporation, Nevada Gold Mines, is now the world’s largest gold mining complex with six mines churning out over 3.3 million ounces annually.

Uzbekistan’s state-owned Muruntau mine, one of the world’s deepest open-pit operations, produced just under 3 million ounces, making it the second-largest gold mine. Muruntau represents over 80% of Uzbekistan’s overall gold production.

Only two other mines—Grasberg and Olimpiada—produced more than 1 million ounces of gold in 2021. Grasberg is not only the third-largest gold mine but also one of the largest copper mines in the world. Olimpiada, owned by Russian gold mining giant Polyus, holds around 26 million ounces of gold reserves.

Polyus was also recently crowned the biggest miner in terms of gold reserves globally, holding over 104 million ounces of proven and probable gold between all deposits.

How Profitable is Gold Mining?

The price of gold is up by around 50% since 2016, and it’s hovering near the all-time high of $2,000/oz.

That’s good news for gold miners, who achieved record-high profit margins in 2020. For every ounce of gold produced in 2020, gold miners pocketed $828 on average, significantly higher than the previous high of $666/oz set in 2011.

With inflation rates hitting decade-highs in several countries, gold mining could be a sector to watch, especially given gold’s status as a traditional inflation hedge.

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