DiamondBuzz
The New Diamond Dilemma: Why Advanced Certification is the Key to Industry Integrity
By Ramit Kapur, MD, Gemological Science International (GSI)
The diamond industry stands at a critical juncture. In recent years, technological advancements in diamond synthesis have reached unprecedented levels, pushing the industry into a new era where distinguishing between natural and man-made diamonds has become increasingly complex. As production scales up, the quality of these diamonds is also improving, making traditional identification methods insufficient.
This evolution brings both opportunity and challenge. While the industry has embraced innovation, it must also address a pressing concern: ensuring absolute transparency at every stage of the supply chain. The risk of undisclosed mixing has never been higher, making rigorous certification no longer just a safeguard but an absolute necessity.
The Silent Challenge of Undisclosed Mixing
Unlike the past, where visual and basic spectroscopic assessments could easily differentiate natural diamonds from their counterparts, today’s landscape demands a far more advanced approach. New-generation diamonds are engineered to exhibit characteristics nearly identical to those of natural diamonds, making detection a sophisticated scientific endeavor.
Contamination; whether accidental or deliberate, can occur at multiple points in the supply chain. From loose sorting, bagging to jewelry manufacturing, from wholesale distribution to retail, an undisclosed stone can enter at any stage. Even a single instance of an undetected mix-up can erode consumer confidence and jeopardize the credibility of a business. For retailers, the challenge is clear: without a verified certification from a reputable gemological laboratory, there is always a room for doubt of what they are purchasing.
For decades, the 4Cs; Cut, Color, Clarity, and Carat weight, were the industry’s gold standard for determining a diamond’s value. However, while these parameters still hold fundamental importance, they do not address the crucial question of authenticity of the nature of origin. In an environment where sophisticated processes are used to create diamonds that look, feel, and test like natural stones under conventional methods, reliance on legacy techniques and stereotypical thought processes is no longer sufficient.

Labs Beyond Traditional Grading:
This is where gemological laboratories play a decisive role. A laboratory’s function today goes far beyond grading; it is about continuous research, technological innovation, and investment in cutting-edge detection capabilities. The methods that were effective yesterday will not be enough tomorrow. Laboratories must remain ahead of the curve, upgrading methodologies, instruments, and expertise in real-time.
The Need for Constant Evolution in Laboratory Science
At GSI, we recognize that the industry’s ability to maintain transparency hinges on the gemological community’s ability to evolve. As detection challenges grow, so do our efforts to stay ahead.
Investing in state-of-the-art instrumentation is not a one-time effort; it is an ongoing commitment. New techniques demand new solutions, and old detection methods quickly become obsolete. As the industry progresses, our labs must not only adopt the latest technologies but also develop pioneering research to stay one step ahead.
This is why at GSI, our facilities are equipped with the world’s most sophisticated diamond detection instruments, designed to analyze, verify, and certify with absolute precision. We work closely with industry partners, scientific research institutions, and technology developers to ensure that we are at the forefront of gemological advancements.
Retailers: The First Line of Consumer Protection
For retailers, advanced certification is more than a formality; it is a responsibility. Consumer trust is fragile, and in an age where buyers are more informed than ever, transparency is non-negotiable. A diamond with an undisclosed identity can severely impact business credibility, making independent verification through a trusted laboratory indispensable.
Here’s why comprehensive certification is essential for every retailer:
- Absolute Authenticity: Ensures diamonds are precisely what they are represented to be, eliminating any risk of misrepresentation and contamination.
- Regulatory Adherence: With global authorities tightening disclosure norms, compliance is no longer optional.
- Consumer Confidence: Buyers rely on retailers for assurance; a certified diamond reinforces their trust in the purchase.
- Industry Integrity: Prevents undisclosed mixing, preserving the credibility of businesses and the market at large.
The diamond industry is built on trust. As innovations in diamond production continue to advance, the need for transparency will only intensify. The responsibility to uphold this integrity does not rest with laboratories alone: retailers, wholesalers, and manufacturers must collectively prioritize certification as a fundamental business practice.
At GSI, we are committed to supporting the industry through scientific precision, technological advancement, and a dedication to detection excellence. Our goal is simple: to ensure that every diamond reaching a consumer is exactly what it claims to be.
For retailers, the message is clear: certification is not just a step in the process; it is the foundation of a credible and successful business. Ensuring that every piece of jewelry is independently verified is not just about safeguarding transactions; it is about safeguarding trust, the most valuable asset in the diamond industry.
DiamondBuzz
​De Beers Cuts Diamond Production But Sees Sales Rise
The Main Reasons For The Drop Were Planned Repair Work In Botswana and Slower Operations At Its Venetia Mine In South Africa. Demand For Diamonds Grew In The US and India.
De Beers produced 11% fewer diamonds in the third quarter of 2026 compared to last year, bringing total production down to 6.8 million carats. The main reasons for the drop were planned repair work in Botswana and slower operations at its Venetia mine in South Africa before it temporarily pauses production for two years.
Despite lower production, overall diamond trading improved. Demand for diamonds grew in the US and India, and the market became better balanced. However, lab-made diamonds continued to hurt sales of cheaper natural diamonds.
Production Highlights by Country
Botswana: Down 20% to 4.8 million carats due to maintenance at the Orapa mine.
South Africa: Down 37% to 418,000 carats as the Venetia mine slowed down.
Namibia: Up 8% to 495,000 carats.
Canada: More than doubled to 1.06 million carats because the Gahcho Kué mine processed higher-quality ore.
On October 16, De Beers took full ownership of Canada’s Gahcho Kué mine after taking over its partner Mountain Province’s 49% share. Starting in the fourth quarter, De Beers will report all production from this mine on its own books. This will raise De Beers’ official production numbers, but it will not change the overall amount of diamonds in the world market.
Sales Revenue: Reached $731 million for the quarter, up 4% from $700 million last year.
Sales Volume: Nearly doubled to 8.7 million carats, up from 4.6 million carats a year ago.
Even though sales volume went up, the average price De Beers received per carat so far this year fell 37% to $97. This was caused by an 18% drop in overall rough diamond prices and the fact that De Beers sold a higher proportion of cheaper diamonds this year.
Because De Beers now owns 100% of the Gahcho Kué mine, it raised its full-year 2026 production target to 25–28 million carats (up from 21–26 million). It also lowered its expected production cost from $80 to about $70 per carat. The company said it will keep watching market demand and adjust its production as needed.
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