Africa-focused Petra Diamonds has postponed a scheduled sale of about 200,000 carats of diamonds from its Cullinan mine in South Africa, citing uncertainty over the impact of new US tariffs.
Last week, US President Donald Trump announced sweeping import tariffs ranging from 10% to over 100%, including a 30% duty on many South African goods. The move has injected volatility into the global diamond market.
Petra, which holds the world’s third-largest diamond resource, said the decision to delay the Cullinan sale aims to secure stronger market prices once the tariff situation becomes clearer. The sale had been expected to generate approximately $18 million in revenue.
Despite the disruption, the company managed to complete sales from its Finsch mine in South Africa and the Williamson mine in Tanzania before the tariffs were introduced.
South Africa remains one of the largest diamond exporters to the US, alongside India.
So far in the 2025 financial year, Petra has earned $103 million from rough diamond sales, down from $138 million during the first five tenders of the previous year.
Russian diamond producer Alrosa announced Friday that it finished the two year cutting process of the country’s largest ever diamond a 100 carat vivid yellow stone named New Sun.
New Sun was cut from a billion year old 200 carat rough diamond, which was unearthed from an ancient riverbed at the Ebelyakh mine in the Far East republic of Sakha (Yakutia).
Alrosa said 15 of Russia’s top jewelers worked meticulously to “achieve the perfect balance between light, color and the play of shades.”
“Thanks to the highest skill of Russian experts, the diamond has acquired impeccable proportions that accentuate its depth and brightness of its sunny hue,” the company said.
The cutting process marks a “new stage” in the development of the Russian Cut, a gem cutting technique known for its precision and brilliance, Alrosa said.
“New Sun is one of the most significant events in the gemstone industry in recent years, highlighting Russia’s high status in the global diamond industry,” the company said.
Last month, Alrosa announced the temporary suspension of operations at several less profitable sites, reducing annual production by less than 1 million carats. The company still plans to produce 29 million carats of diamonds in 2025.
Alrosa, which is under an EU and G7 import ban, is the world’s largest diamond mining company by volume. It cut production by 2.8% to 34.6 million carats in 2023 and by 4.6% to 33 million carats in 2024.
Canadian diamond miner Lipari Mining has officially begun trading on the Cboe Canada stock exchange following the completion of its recently announced reverse takeover.
“Listing on Cboe Canada marks a major milestone in our company’s growth,” CEO Ken Johnson stated in a news release Monday, adding that the exchange’s global footprint would allow the company to broaden its shareholder base and increase market visibility.
Shares of Lipari Mining traded at C$0.57 at Monday’s open, for a market capitalization of approximately C$83.7 million ($58.5 million).
Formerly known as Golden Share Resources, the company announced last month that it is acquiring Lipari Diamond Mines (LDM) and its assets in Angola and Brazil through an RTO, following which LDM shareholders would own nearly all (96.7%) of the combined company’s shares.
Prior to closing the transaction, LDM raised approximately $3.62 million through a private placement of subscription receipts to support the future development of its two diamond assets.
In Angola, Lipari owns a 75% equity interest in Tchitengo diamond project, encompassing 30 known kimberlite deposits. The Tchiuzo kimberlite represents the most developed, having already been taken to pre-feasibility by Sociedade Mineira de Catoca and ALROSA in 2013 after spending a reported $35.6 million.
In an earlier news release, CEO Johnson said the company has planned a bulk sampling program at Tchiuzo to follow up on the confirmatory drilling completed by LDM last year. This is targeted to produce a representative parcel of rough natural diamonds for evaluation and making a production decision.
Lipari also owns 100% of the Braúna diamond mine located in the state of Bahia, Brazil. Since entering commercial production in July 2016, the mine has produced nearly 1.2 million carats of natural rough diamonds from 6.54 million tonnes of kimberlite mined, for an average production grade of 18.2 cpht. Operations are now focused on the transition of the mine from an open pit to an underground operation.
According to Johnson, the mine is ramping back to full capacity, with the transition to underground mining largely completed. “Our first sale of diamond production from our underground operation is expected in April,” he added.
Botswana’s economic outlook has been downgraded from stable to negative by S&P Global Ratings (S&P) on account of low demand for diamonds.
It forecasts a steep rise in government debt unless there is a substantial increase in diamond prices or significant fiscal intervention.
Botswana’s economy is heavily reliant on diamonds. They account for around 80 per cent of its export earnings and a third of total budget revenues.
De Beers and the Botswana government finally reached agreement last month on the long-term mining and rough sales deals, but sales by their joint venture, Debswana, were down by 52 per cent for the first three quarters of 2024, and there a few signs of a sustained recovery in demand.
Despite downgrading its economic prospects, S&P left Botswana’s long-term foreign and domestic currency sovereign credit rating unchanged at BBB+ and its short-term rating at A-2.
“The negative outlook is on account of S&P’s expectation that weak global demand for diamonds and depressed prices will continue to suppress Botswana’s exports and fiscal position, therefore, delaying government’s fiscal consolidation agenda and the rebuilding of buffers,” said the Bank of Botswana in a statement.
It highlighted the fact that S&P said the newly-elected government’s commitment to reducing unemployment, diversifying the economy and increasing social support, while maintaining fiscal prudence, also had a positive impact to the ratings.
A new device, the DiamondProof, can rapidly and reliably distinguish natural diamonds from laboratory-grown diamonds and other diamond simulants.
One of the most common misconceptions in the ongoing debate between natural and non-natural diamonds is that it’s impossible to tell the difference between the two. Research shows that almost half of consumers are unaware that laboratory-grown diamonds (LGDs) can be detected from their natural counterparts. For consumers who are investing in diamonds and diamond jewelry, this means there is perhaps a lack of assurance that they are getting what they think they are paying for. This spring, with the introduction of a new verification device, the DiamondProof, to retail stores for the first time, consumers will be able to make informed purchasing decisions and distinguish natural diamonds from non-natural diamonds, like LGDs and other diamond simulants, with a zero percent ‘false positive rate’.
Developed by the De Beers Group, the DiamondProof technology can detect the distinct chemical compositions of natural diamonds, allowing for precise and rapid identification. Early adopters of the DiamondProof include some of the largest jewelry retailers in the U.S., and the device will also be available in several independent retail outlets to ensure that any diamond consumer can try out the technology and gain assurance on their jewelry, or diamonds they are planning to purchase. The first DiamondProof prototype instrument was unveiled last June at the JCK show in Las Vegas, the premier jewelry expo for retail professionals. Many quickly jumped on board and ordered the device for their stores, noting the ability to rapidly and easily screen both loose diamonds as well as stones set in jewelry. “Natural diamonds and lab-grown diamonds are two fundamentally different products. Natural diamonds are rare, one-of-a-kind miracles of nature that come to us from the earth through heat, pressure, and time.” notes CEO of De Beers Brands Sandrine Conseiller. “This incredible journey is what makes them the ultimate marker of life’s most profound emotional moments. Consumers should be able to have confidence in such a meaningful purchase, and DiamondProof allows retailers to offer them greater peace of mind. We are in a new era of transparency at retail, and customers deserve to know what they are buying.”
“By rapidly and reliably identifying whether a diamond is natural, DiamondProof is instrumental in enhancing consumer confidence in natural diamond purchases. Consumers deserve clarity and having DiamondProof available in retail settings helps them make informed decisions while appreciating the unique value and story behind each natural diamond. With decades of leadership in synthetic-detection technology, we are committed to providing the level of transparency that consumers expect,” stated Sarandos Gouvelis, SVP, of Pricing, Product and Technology Development at De Beers Group. For anyone looking to evaluate and verify their diamond jewelry or looking for assurance in new diamond purchases, a major retailer near you will soon have a DiamondProof available.
Gem Diamonds saw revenue and profits increase in FY2024, as high-value recoveries more than made up for persistent downward pressure of the diamond market.
In its Full Year 2024 Results published today (13 March), the UK-based miner reported a 10 per cent increase in revenue to $154.2m, largely driven by the sale of 13 +100-cts diamonds from its Letseng mine, in Lesotho.
Underlying EBITDA almost doubled to $29.7m and profit for the year increase from $1.6m to $8.1m.
Exceptional sales included an 11 carat pink diamond that was sold for $45,537 per carat, a 63 carat Type IIa white diamond that was sold for $41,007 per carat (the highest per carat price of the year) and a 113 carat Type IIa white diamond that was sold for $39,345 per carat.
The number of carats recovered during the year fell 4 per cent to 105,012.
Clifford Elphick, CEO at Gem, said: “2024 was another challenging year for the diamond market with decreasing rough and polished diamond prices. Our relentless focus on factors within our control – cost containment, operational efficiencies and appropriate capital allocation, has yielded pleasing results.”
Looking to the future, the company expects the market to remain under pressure during the year, with signs of a modest recovery in diamond prices.
The world’s largest pearl – weighing 27.65kg and valued at $98m is currently being displayed at a secret venue in Canada.
The Giga Pearl belongs to Toronto-based artist Abraham Reyes and is being shown as part of his Beneath The Surface exhibition of pearls, diamonds, and other precious stones.
The pearl was created 1,000 years ago by a giant clam, the largest of all bivalve molluscs (soft-bodied sea creatures with a hinged shell).
It has been certified by the GIA as the world’s largest natural blister pearl and holds the Guinness World Record.
Reyes inherited the pearl in 2019 from a great aunt after his grandfather bought it from a fisherman in the Philippines.
“I wanted to educate people about it,” Reyes said. “A lot of people don’t know that these giant clams exist because they’re endemic in the South Pacific. So this is something fascinating for people here in Toronto.”
The location of the Giga Pearl is being kept private for security reasons.
The Russian government could buy more rough diamonds from the state-run miner Alrosa, as it faces ongoing G7 sanctions and weak global demand.
The Finance Ministry says it will assess the situation after seeing second quarter results.
Alrosa last week reported a 77 per cent slump in profits for 2024 (down to $223m) and has said it could suspend some less profitable activities and lay off some of its 35,000 workers.
“As we have already said, it is possible that Gokhran will buy some of the stones, said Deputy Finance Minister Alexey Moiseyev, according to a report by the privately-run Interfax news agency.
“At this stage, we are still observing the market dynamics, indeed, it is quite weak, but not much time has passed. In principle, the first quarter is rarely good.”
Alrosa has previously offloaded excess inventory to Gokhran, the Russian State Precious Metals and Gemstones Repository in times of weak demand.
During the financial crisis of 2009 Gokhran bought up $1bn of Alrosa’s diamonds. And it sold back millions of carats in 2022, when a surge in post-lockdown demand outstripped the miner’s production capacities.
Last November it said it would be selling a batch of rough diamonds, including its largest recovery in a decade – an irregular-shaped diamond weighing 390.7 carats
Jewelry from the collection of screen icon Elizabeth Taylor are to be sold at a Beverly Hills auction.
The highlight is a ruby, diamond, and gold necklace (pictured) with lion’s face design and matching earrings. Estimate $100,000 to $200,000.
There’s also a 1935 Art Deco emerald and diamond brooch – old mine-cut and European cut – mounted in platinum and gold, with an estimate of $20.000 to $30,000.
And a gold and diamond Star of David pendant necklace designed by Theo Fennell and marking her conversion to Judaism in 1959. Estimate $20,000 to $30,000.
They’ll be offered for sale at Bold Luxury: The Limelight Edit auction by Julien’s Auctions, on 27 March 27 at The Peninsula Beverly Hills, along with fashion and other items owned by Marilyn Monroe, Cher, Victoria Beckham and Amy Winehouse.
“Bold Luxury is not just an auction — it’s an invitation to step into the limelight and own a tangible piece of cultural history,” said Martin Nolan, co-founder and executive director of Julien’s Auctions.
Diamond Foundry, which has just opened a lab grown factory in Trujillo, western Spain, is facing an environmental backlash over claims it uses more water than the entire 8,500-population town where it is located.
Residents at a meeting earlier this month were told the new facility, built with $85m of European Union cash, was estimated to consume more than 730,000 cubic meters of water annually.
The huge facility will produce at least 4m carats a year and create 300 jobs. But environmental groups are concerned about the factory’s water usage, which is, they say “completely unsustainable”.
“There would be enough water for the diamonds but the population of Trujillo would have to buy jugs at the supermarket to drink, shower, cook, etc,” says an article in
Diamond Foundry, a Silicon Valley startup with Leonardo Dicaprio, star of the Blood Diamond movie, among its backers, is valued at $1.8bn.
“The water supply to Diamond Foundry is, once again, also in question, as it would cause serious supply problems for drinking water for the population of Trujillo and its surroundings,” according to the El Salto local news website.
It says the building is one of the first industrial projects in the world powered entirely by solar electricity and insists it holds the necessary permits to use reclaimed water from local treatment plants.
