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
Natural Diamond Council Celebrates Legacy of Canadian Diamonds at Exclusive London Event with Lily James
Event at Canada House Highlights the Ethical Sourcing, Cultural Significance, and Global Impact of Canada’s Natural Diamonds

On March 19, 2025, the Natural Diamond Council (NDC), in collaboration with the High Commission of Canada in the UK and the Government of the Northwest Territories, hosted the prestigious “Diamonds, A Canadian Love Story” event at Canada House, Trafalgar Square, London. This exclusive gathering showcased the ethical sourcing, cultural heritage, and global influence of Canada’s natural diamonds, with a special focus on their positive impact on Indigenous communities and the fine jewellery industry.
Canada is renowned as one of the world’s leading sources of ethically mined diamonds, and the event celebrated the country’s commitment to responsible practices in the diamond industry. Key figures in the sector gathered to discuss the role of Canadian diamonds in the future of luxury jewellery.
A highlight of the evening was an insightful panel discussion moderated by Bronwyn Cosgrave, celebrated author and producer. The panel featured Lily James, Emmy-nominated actress and Global Ambassador for the Natural Diamond Council; Kateri Rose Lynn, Councillor of Dettah – Yellowknives Dene First Nation and representative of Diamond de Canada; Paul Gruner, CEO of Tłı̨chǫ Investment Corporation; and Jody Wainwright, Managing Director at Boodles. The discussion explored the rich legacy of Canadian diamonds, their ethical mining practices, and their cultural importance to Indigenous communities.
Attendees were also treated to an immersive exhibition featuring stunning collections from prestigious jewellery brands such as Dries Criel, Almod Diamonds, Boodles, Lands Collection by Diamonds of Canada, Misfit Diamonds, Gemporia, HRA Group, Diacore, and Canada’s winners of the Shining Light Awards by De Beers Group. These brands showcased the artistry and craftsmanship of Canadian diamonds, emphasizing their journey from the Earth to luxurious fine jewellery.

“Canadian diamonds are a true testament to ethical luxury, built on transparency and unmatched craftsmanship,” said David Kellie, CEO of the Natural Diamond Council. The event successfully brought together industry leaders, designers, and diamond enthusiasts for a meaningful conversation about the future of natural diamonds in the realm of responsible luxury.
DiamondBuzz
Lucapa Secures Majority Stake in Angola’s Lulo Mine

Lucapa Diamond Company, an Australian Securities Exchange (ASX)-listed diamond miner, has finalized its mineral investment contract (MIC) for the Lulo joint venture (JV) in Angola, increasing its stake in the project to 51%. The contract is now awaiting formal signature by the Angolan Ministry of Mineral Resources and Petroleum.
The Lulo JV, which focuses on exploring kimberlites at the Lulo concession, has seen Lucapa raise its ownership from 39% to a majority share. The contract finalization followed a three-day meeting in Angola, where Lucapa, along with JV partners Endiama, Rosas & Petalas, agreed on the remaining details.

Lucapa’s Managing Director and CEO, Alex Kidman, commented on the development, stating: “Securing a majority stake in the Lulo exploration JV is a critical milestone for Lucapa, as it will provide us with an increased share of any exploration success. The finalization of the MIC is something our shareholders have long awaited. This progress highlights Angola’s commitment to Lucapa and to the Lulo project, one of the most prominent diamond ventures in the country. We’re excited to continue working with our partners to uncover the source of Lulo’s extraordinary diamonds.”
Currently, the kimberlite bulk sampling program is underway at the Lulo concession, with stockpiling of samples from L130/01. Additional samples are being prepared from promising sites, including L349, L137, and L130.
Earlier in May 2024, Lucapa Diamond announced plans to divest a 70% interest in its Mothae diamond mine in Lesotho.
DiamondBuzz
IGI reports a 17 % increase in revenue for 2024; 29 % growth in profit

The International Gemological Institute (IGI), a leading grading company in the lab-grown diamond market, has reported record financial performance for the calendar year (CY) 2024. The company achieved a 17% increase in revenue and a remarkable 29% growth in profit, driven largely by its dominant 65% share of the global lab-grown diamond grading market.
- Revenue: $120.8 million (INR 10.53 billion), marking a 17% increase compared to the previous year.
- Profit After Tax: $49 million (INR 4.27 billion), reflecting a substantial 29% year-over-year growth.
- Market Share: IGI continues to dominate the lab-grown diamond grading market with a 65% global share.
IGI’s strong financial performance has been supported by its market leadership and strategic business decisions. The company went public in December 2023 with an initial public offering (IPO) that valued IGI at $3.5 billion. This marked a significant valuation jump from its $570 million acquisition price when Blackstone, the world’s largest alternative asset manager, took ownership in May 2023.
Eashwar Iyer, IGI’s Global Chief Financial Officer (CFO), emphasized the company’s operational strength and strategic execution, attributing the record revenue and profit growth to IGI’s ability to capitalize on market opportunities and strengthen its competitive position.
IGI’s robust financial performance underscores the expanding demand for lab-grown diamonds and the growing importance of reliable certification in the industry. The company’s continued leadership in this segment reinforces its credibility and positions it for sustained growth in the future.
IGI’s record-breaking financial results in 2024 highlight its dominant market position, successful strategic initiatives, and ability to drive profitability. With a strong financial foundation and continued expansion, IGI remains at the forefront of the lab-grown diamond grading industry, setting benchmarks for excellence and growth.
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