World’s Largest Black Diamond Sells for Over $4 Million

A picture taken on January 17, 2022 shows The Enigma, a 555.55 carat black diamond, at Sotheby's in Dubai, UAE. (AFP)
A picture taken on January 17, 2022 shows The Enigma, a 555.55 carat black diamond, at Sotheby's in Dubai, UAE. (AFP)
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World’s Largest Black Diamond Sells for Over $4 Million

A picture taken on January 17, 2022 shows The Enigma, a 555.55 carat black diamond, at Sotheby's in Dubai, UAE. (AFP)
A picture taken on January 17, 2022 shows The Enigma, a 555.55 carat black diamond, at Sotheby's in Dubai, UAE. (AFP)

The rare black diamond known as ‘Enigma’ went under the hammer in London for £3.16 million ($4.3 million). According to Agence France Press (AFP), it’s believed to be the world's largest cut diamond.

The 555.55 carat, 55-faced diamond was sold at an online auction that concluded on Wednesday. The stone is registered as the largest natural diamond in the world as of 2004 by diamond experts GIA and Gubelin, and the largest cut diamond in the world as of 2006 by the Guinness World Record book.

Unlike classic diamonds that are usually unearthed from deep undergrounds, black diamonds are often close to or on the Earth’s surface, which may possibly suggest extraterrestrial origins, stated Sotheby’s auction house.

“It is thought that this specific type of black diamond was created either from meteoric impacts producing natural chemical vapor deposition or an extraterrestrial origin - from supernovae explosions that formed diamond-bearing asteroids which ultimately collided with the Earth,” added Sotheby’s statement.

Today, these diamonds are found exclusively in Brazil or the Central African Republic. Their aggregated structure is the toughest in existence, making them nearly impossible to cut and polish. Enigma was bought in the late 1990s and would have weighed over 800 carats in the rough form. It took over three years to produce this uniquely shaped faceted specimen.

Its shape is inspired by the Middle Eastern palm symbol, a sign of protection and a tool of deflection against the evil eye. However, the highest price of an auctioned diamond remains with the Pink Star diamond, which was sold for $ 71.2 million at a 2017 auction also organized by Sotheby’s, in Hong Kong.



7 Drinks That Boost Your Brain Health Naturally

Green tea contains compounds beneficial for the brain (Reuters)
Green tea contains compounds beneficial for the brain (Reuters)
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7 Drinks That Boost Your Brain Health Naturally

Green tea contains compounds beneficial for the brain (Reuters)
Green tea contains compounds beneficial for the brain (Reuters)

Caring for brain health is not limited to mental exercises and good sleep; it also extends to the foods and beverages we consume on a daily basis.

Certain natural drinks contain nutrients and antioxidants that play an important role in supporting brain function, enhancing memory and concentration, and protecting against cognitive decline associated with aging.

Below are some of the most notable drinks that may help support brain health in a natural and simple way, according to the scientific website Verywell Health:

Green Tea

Green tea contains compounds with antioxidant and anti-inflammatory properties and has been studied for potential benefits related to metabolic health, aging, and immune support. Green tea has been widely studied for its effects on brain health. Regular consumption appears to be more beneficial than occasional use.

Green tea contains catechins, antioxidants that may reduce oxidative stress in the brain. It also provides L-theanine, an amino acid linked to improved attention and calm focus, especially when combined with small amounts of caffeine.

Coffee

Coffee is a major dietary source of antioxidants, and its effects on brain health have been widely studied.
In the short term, the caffeine in coffee works by inhibiting adenosine, a neurotransmitter that contributes to promoting drowsiness. This effect may temporarily improve alertness, reaction speed, and concentration.

Observational studies suggest that moderate coffee consumption, in the long term, may be associated with a reduced risk of age-related cognitive decline.

Blueberry Smoothies

Blueberries are rich in flavonoids, especially anthocyanins, which are plant compounds linked to brain health. Research indicates that regular consumption of blueberries may support memory, learning, and overall cognitive functions by helping to protect brain cells from oxidative stress and inflammation. Blending blueberries into smoothies or drinks helps retain many of their beneficial compounds while making them easy to consume regularly.

Beet Juice

Beetroot contains a combination of dietary nitrate, betalains, and polyphenols that may support brain health. Research suggests these compounds help improve blood flow, support antioxidant defenses, and influence processes involved in cognitive decline. Dietary nitrate from beetroot increases nitric oxide, which helps improve blood flow to the brain. Research suggests nitrate-rich foods may support brain blood flow and be linked to slower cognitive decline, while other beetroot compounds may help reduce oxidative stress and inflammation. Most studies are small, and more research is needed to confirm long-term benefits.

Turmeric Golden Milk

Turmeric contains curcumin, a plant compound with antioxidant and anti-inflammatory effects. Research suggests that curcumin may help protect brain cells by reducing inflammation and oxidative stress, which are associated with cognitive decline. Curcumin also affects pathways involved in memory and learning. However, it is poorly absorbed on its own, limiting the amount that reaches the brain.

Pomegranate Juice

Pomegranate juice is rich in polyphenols, plant compounds with powerful antioxidant effects. Research indicates that these compounds may help protect brain cells by reducing oxidative stress and inflammation, which are associated with cognitive decline and Alzheimer’s disease. Preliminary studies conducted on animals suggest that pomegranate compounds may also support healthy blood flow to the brain by increasing nitric oxide production. These effects combined may support brain function over time.

Omega-3-Fortified Drinks

Omega-3 fatty acids, especially docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA), are essential for normal brain function, as they help support communication between brain cells. Drinks fortified with DHA and EPA may help people increase their intake of these important fats.


Qassim Falcons Festival Concludes with Record Attendance

Photo by SPA
Photo by SPA
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Qassim Falcons Festival Concludes with Record Attendance

Photo by SPA
Photo by SPA

The Qassim Falcons Festival concluded yesterday in Al-Asyah Governorate, with 675 falconers from various Arab countries and over 20,000 visitors and 15 local families attending, contributing to the festival’s economic and social activities, SPA reported.

This edition of the festival featured numerous competitions and programs that attracted falconry enthusiasts and reinforced its status as one of the region’s premier heritage events.


Ethiopia Must Suspend Biggest Gold Mine over Toxic Chemicals

Mine workers stand underground at Gold Fields' South Deep mine, south-west of Johannesburg, South Africa October 12, 2022. REUTERS/Siphiwe Sibeko/File Photo
Mine workers stand underground at Gold Fields' South Deep mine, south-west of Johannesburg, South Africa October 12, 2022. REUTERS/Siphiwe Sibeko/File Photo
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Ethiopia Must Suspend Biggest Gold Mine over Toxic Chemicals

Mine workers stand underground at Gold Fields' South Deep mine, south-west of Johannesburg, South Africa October 12, 2022. REUTERS/Siphiwe Sibeko/File Photo
Mine workers stand underground at Gold Fields' South Deep mine, south-west of Johannesburg, South Africa October 12, 2022. REUTERS/Siphiwe Sibeko/File Photo

Work at Ethiopia's largest gold mine must be suspended to protect nearby children from the toxic chemicals it has released into the soil, Human Rights Watch (HRW) said Thursday.

Operations at the Lega Dembi mine, around 500 kilometres (310 miles) south of the capital Addis Ababa, were halted by authorities in 2018 following protests from locals over pollution.

The government promised to reopen the mine only after environmental concerns had been addressed, but did so in 2021 "without public announcement" and "quashed publication of a government health study", said HRW in a statement.

The rights group said several studies had revealed high concentrations of toxic chemicals including cadmium, mercury, lead and arsenic.

Residents had "for years complained about serious health impacts, including children born with long-term health conditions, miscarriages, and stillbirths".

The campaign group urged the UN Committee on the Rights of the Child, due to meet soon, to press Ethiopia to suspend mining operations and "ensure victims of abuse are provided effective remedy, including compensation, medical care, and access to justice".

The Ethiopian government did not respond to a request for comment from AFP.

Ethiopia, the continent's second most populous country with some 130 million inhabitants, is regularly criticised by NGOs for human rights abuses.

But mining is crucial to a country in which more than 40 percent live below the poverty line, with gold exports generating $2.1 billion in the first nine months of 2024, according to the latest figures from the mining ministry.