Welcome to edition 583 of WINC,

IDMA's Weekly Internet News Collection - September 27, 2026

 

Dear IDMA Members and Industry colleagues,


The real measure of change


On 21 September 2026, the five-year transition period for the revised System of Warranties comes to an end. Five years can sound like a long time. But people do not change simply because a document has changed.

 

They need time to understand what is being asked of them, to question it, to adapt it to the reality of their business and, eventually, to make it their own. That was the purpose of these five years. When the World Diamond Council revised the System of Warranties in 2021, we expanded its scope to incorporate principles relating to human and labour rights, anti-money laundering and anti-corruption. We knew that introducing those principles was only the beginning. For them to mean something, they had to find their place in the reality of an extraordinarily diverse global industry.

 

Real change rarely happens at the moment it is announced. It happens afterwards, more quietly, through thousands of decisions made inside businesses. Procedures are adapted. Questions are asked. Habits change. What initially feels new gradually becomes familiar. Eventually, it simply becomes the way business is done.


And that matters particularly because the System of Warranties is an act of industry self-regulation.

 

[Read the complete article here]


Elodie Daguzan, Executive Director,

World Diamond Council

De Beers sees natural diamond demand recovering amid lab-grown pressure: As reported by the Financial Times, De Beers chief executive Al Cook says consumers are increasingly favouring what they see as real and natural over synthetic alternatives, from food to art and personal relationships. He argues the company can tap that trend to support a recovery in demand for natural diamonds. Cook says the industry is benefiting from a backlash against artificial products as enthusiasm fades in some adjacent categories. The article points to weaker spending on meat alternatives in the U.S. and a sharp drop in NFT art trading volumes from their earlier peak, trends that De Beers believes reinforce its positioning of natural gems as scarce, physical luxury goods.

Botswana says natural diamond recovery need a stable De Beers: Botswana vice president Ndaba Gaolathe says the recovery of the natural diamond market depends to a large extent on a stable relationship between his country and De Beers, in which it currently holds a 15% stake. He also said uncertainty over the partnership between his government and the diamond miner helped give lab growns an opening. Speaking at Chatham House, the London-based international affairs think tank, on September 17, Gaolathe said Botswana and De Beers had historically acted together during diamond downturns, including by stockpiling rough diamonds and investing in category marketing. 

Diamond prices fall to lowest levels this two decades as lab-grown stones reshape market: Natural diamond prices have fallen to levels not seen in more than two decades, with wholesale prices now around 30-40 per cent below their 2021 peaks. The decline comes as the diamond industry faces weaker demand, excess supply and growing competition from lab-grown stones. Retail prices for a mainstream 1-carat natural round diamond currently range between $3,530 and $3,860.

WFDB Chief Mehul Shah calls for global natural diamond mark at HK Show: Shah said the industry should create a symbol similar to the Woolmark, allowing consumers to instantly identify genuine natural diamonds and understand their authenticity, origin and quality. “Just as Woolmark became the trusted symbol for pure wool, natural diamonds deserve a globally registered mark. Every genuine natural diamond should carry the right to use this mark,” Shah said. He also raised concerns over differences between laboratory grading systems, which, he said, can create confusion among consumers.

De Beers sale nears deadline: The government is nearing the end of its review of Anglo American’s proposed sale of its 85 percent De Beers stake. Due diligence is expected to conclude by the end of September, according to people familiar with the process and public statements by officials. Botswana must then decide whether to join the preferred bidder, exercise its pre-emption rights and buy Anglo American’s stake, or pursue another ownership structure. The transaction could close in the fourth quarter of 2026.

Who should fund the future of natural diamonds?: The real question is not whether an industry generating 70 USD billion in annual retail sales can raise 500 million USD a year for its future. The amount is not the problem. It is financial architecture and collective responsibility — transforming an industry in which everyone benefits from demand into one in which everyone accepts responsibility for creating it. Solve that, and 500 million USD stops looking like an impossible number. It becomes a design problem. The precise number can be debated. The scale of investment cannot. With laboratory-grown diamonds reshaping the market, the risk is no longer simply losing market share. Without a new financing system, natural diamonds risk becoming marginal far sooner than many imagine. 

Surat Diamond Workers demand wage hike from GJEPC

The union demanded a comprehensive survey of wages paid to diamond workers across Gujarat and called for an increase in piece-rate payments in line with the rising cost of living.

HB downsizes Botswana operations after failed supply deal

Boaz Lev told Reuters the commitment announced in 2023 had yet to materialise despite repeated engagement with the government that took office in October 2024.

Saurimo to inaugurate seventh diamond polishing plant

Once the seventh facility becomes operational, the PDDS will host seven diamond cutting and polishing units, reinforcing its position as a major diamond-processing center in Angola.

NMDC recovers a 27.29-carat diamond from Panna mining project

It is the second-largest diamond recovered from the NMDC Panna mine. Based on its colour, carat weight and clarity (CCC), the initial estimated value of the 27.29-carat diamond is around Rs.1 crore.

Rio Tinto, Kitikmeot Inuit sign pact on impacts of Diavik’s closure

The agreement commits to assisting the Kitikmeot Inuit in responding to the socio-economic impacts of Diavik’s closure through financial investment, including funding for scholarships and cultural programs.

Natural Diamond Council relaunches as the Diamond Collective

The organization describes the change as more than a rebrand, calling it a more ambitious way of working that is “consumer-first, evidence-led and collective by design.”

Botswana rules out reckless De Beers spending

President Duma Boko had earlier signalled Botswana wanted outright control, though officials have since suggested a smaller increase to the government’s existing 15% stake could suffice

QDE widens scope with CIBJO membership

QDE joins as a National Association Member, extending the exchange's international standing beyond the diamond trade into the wider jewellery, gemstone and precious metals sector.

Rare blue diamond ring set to sell for £2million

Auctioneers Elmwood’s said the jewel will be only the third blue diamond weighing more than eight carats ever offered at auction in the UK.

WFDB outlines strategic priorities for natural diamond industry

[Shah] called for greater emphasis on branding, jewellery design, craftsmanship and storytelling to increase the perceived value of natural diamonds.

Calls for local-language clarity on CIBJO’s ‘synthetic’ recommendation

The diamond trade is calling for practical, market-specific implementation of CIBJO’s terminology recommendation, with local-language declarations and clearer certification proposed to improve consumer understanding.

Retail sales climb again in August

Total retail sales, excluding automobile dealers and gasoline stations, rose 0.22% on a seasonally adjusted basis from July and increased 3.87% year over year.

Ruby production increases by 61 percent in first half of 2026

Government data on government performance from January to June point out that ruby production reached 3,183,333 carats, compared with 1,972,110 carats recorded in the same period of 2025.

Gold loses shine as rate hike bets foster a stronger dollar

Gold prices fell more ‌than 1%. Among other metals, spot silver fell 3.9% to $64.45 per ounce, platinum lost 5% to $1,741.83, and palladium ​declined 3.7% to $1,259.24.

China county makes diamonds 'as cheap as cabbage'

Zhecheng County in China's Henan Province has become a major hub for lab-grown diamonds, accounting for about 60% of the country's production.

About Origin

Consumers care about the origin of many products. Why not diamonds?: In this Long Read, former De Beers executive Nicholas Moltke, the founder and CEO of Botswanamark, writes about the problems in not only verifying a diamond’s origin, but selling tracked-and-traced diamonds over the counter. This essay is timed for the celebrations of Botswana’s Diamond Jubilee, as well as Climate Week NYC.

About value retention

 

Why liquid diamond buy-backs matter more than ever today: In Asia, there is a culture of buying and holding fine jewellery as a store of value, especially in the case of higher-karatage gold pieces. However, in major Western markets like the US this is much less common. With diamond jewellery in particular, the lack of fungibility makes the business of “cash-for-diamonds” inherently difficult, i.e., businesses have to deal with analysing and pricing potentially thousands of categories of diamonds whereas with gold there is a single market. That said, in a business that is founded on the premise of merchandising valuable possessions, it would behoove the diamond and larger jewellery industry to provide consumers with sufficient liquidity for these assets.

41st World Diamond Congress

DISCLAIMER: IDMA's Weekly Internet/Online News Collection (WINC) features third-party articles and links to these articles. IDMA presents these news items for reference only. The content of these articles neither reflects nor expresses IDMA's position or point of view.

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