Author – Ritesh Ranjan: India is rapidly emerging as a global powerhouse in lab-grown diamond (LGD) technology, and at the center of this transformation is IIT Madras Lab Grown Diamond through its India Centre for Lab Grown Diamond (InCent-LGD). With strong government backing and global collaborations, India is now moving beyond diamonds as gemstones and positioning them as strategic materials for quantum technology, semiconductors, photonics, and energy applications.
The International Conference on Diamond and Emerging Materials (iCDEM 2026) hosted by IIT Madras brought together global experts, researchers, startups, and industry leaders, marking a major milestone in India’s journey toward technological self-reliance (Atmanirbhar Bharat).
IIT Madras InCent-LGD: Powering India’s Diamond Tech Ecosystem
The InCent-LGD at IIT Madras, supported by a ₹243 crore grant from the Ministry of Commerce, is building India’s first integrated ecosystem for gem-quality and electronic-grade lab-grown diamonds.
The center focuses on:
- Indigenous CVD reactor development
- Diamond doping technologies
- NV-centers for quantum applications
- Training and certification programs
- Startup incubation and industry collaboration
This initiative aims to reduce India’s dependence on imported diamond technology and position the country as a global supplier of advanced diamond materials.
According to IIT Madras researchers, lab-grown diamonds are not just alternatives to natural diamonds — they are superior materials for high-tech applications due to their exceptional thermal conductivity, hardness, and quantum properties.
iCDEM 2026: Global Experts Gather in Chennai
The iCDEM 2026 conference held from March 11–13 in Chennai attracted over 250 researchers and innovators from leading global institutions including universities from the US, UK, and Germany, along with industry bodies like GJEPC.
Key topics discussed at the conference included:
- Chemical Vapor Deposition (CVD) diamond growth
- AI-driven diamond defect reduction
- Quantum sensing using NV centers
- Wide bandgap semiconductor devices
- Diamond photonics and 6G communication
- Radiation-resistant materials for space and defense
The conference featured 25 speakers, 60 research posters, and an industry exhibition, creating a strong platform for academia-industry collaboration.
Due to the overwhelming response, iCDEM 2027 has already been announced for January 27–29, further strengthening Chennai’s position as a global hub for diamond technology.
Lab-Grown Diamonds: Beyond Jewellery to Quantum Technology
Lab-grown diamonds have the same physical and chemical properties as natural diamonds, but their real potential lies in advanced technology sectors.
Key Applications:
- Quantum Sensing
NV-center diamonds can detect extremely small magnetic fields, enabling next-generation medical imaging, navigation systems, and defense technologies. - Semiconductors & 6G Technology
Diamond is a wide bandgap semiconductor, making it ideal for high-power electronics, 6G communication devices, and next-gen chips. - Energy & Fusion Reactors
Diamonds can withstand extreme temperatures, making them suitable for fusion reactors and high-energy physics applications. - Space & Defense
Diamond materials are radiation-resistant, making them ideal for satellites, space missions, and defense electronics. - Photonics & Quantum Computing
Diamond waveguides and qubits are being researched for quantum computing and ultra-fast optical communication.
This shift shows that diamonds are becoming a strategic technology material, not just a luxury product.
India’s LGD Market: From Surat Gems to Deep Tech
India’s lab-grown diamond market is expected to reach $2 billion by 2026, with projections of $10 billion in exports in the coming years.
Cities like Surat, traditionally known for diamond polishing, are now transitioning toward lab-grown diamond manufacturing and technology development.
The IIT Madras initiative is expected to:
- Create 50,000 jobs
- Support LGD startups
- Build a Surat–Tamil Nadu diamond technology corridor
- Boost exports and reduce China’s dominance in the sector
This aligns with India’s Atmanirbhar Bharat and semiconductor mission, where advanced materials like diamond will play a critical role.
Startups, Skill Development & Industry Support
IIT Madras has also launched training and certification programs to develop skilled manpower for the LGD industry. The center plans to train over 1,000 technicians per year, creating a strong workforce for this emerging sector.
Startups and MSMEs will get access to:
- CVD diamond growth reactors
- Testing and characterization labs
- Prototype development facilities
- Global research collaborations
This ecosystem will help Indian startups move from research to commercialization faster.
India’s Global Opportunity in Diamond Technology
Globally, the lab-grown diamond industry is growing rapidly as companies shift toward ethical, sustainable, and high-tech diamond production.
India has a major advantage:
- Lower production costs
- Strong polishing industry
- Skilled workforce
- Government support
- IIT Madras research ecosystem
If executed well, India could become a global leader in diamond-based quantum and semiconductor technologies within the next decade.
Conclusion
The IIT Madras Lab Grown Diamond initiative and iCDEM conference mark the beginning of a new technological revolution in India. Lab-grown diamonds are no longer just gemstones — they are materials of the future powering quantum technology, semiconductors, space research, and energy systems.
With strong government support, global collaborations, and startup participation, India is on track to become a global hub for lab-grown diamond technology.
The diamond revolution is no longer about jewellery — it is about quantum technology, deep tech innovation, and India’s technological self-reliance.
FAQs
1. What is the IIT Madras Lab Grown Diamond project?
The IIT Madras Lab Grown Diamond project (InCent-LGD) is a government-funded initiative to develop indigenous lab-grown diamond technology for gem, semiconductor, and quantum applications.
2. What is iCDEM 2026?
iCDEM 2026 is the International Conference on Diamond and Emerging Materials hosted by IIT Madras, bringing together global researchers, startups, and industry experts in diamond technology.
3. How are lab-grown diamonds used in quantum technology?
Lab-grown diamonds with NV centers are used in quantum sensing, quantum computing research, and high-precision measurement systems.
4. What is India’s lab-grown diamond market size?
India’s lab-grown diamond market is expected to reach around $2 billion by 2026, with export potential of $10 billion.
5. How can startups work with IIT Madras InCent-LGD?
Startups can collaborate with IIT Madras through incubation programs, training courses, and access to CVD reactors and testing facilities.