Why Lab-Grown Diamonds Are Sustainable Alternative To Mined Stones, Pg9

Key Highlights:

• Lab-grown diamonds are emerging as a sustainable alternative to mined diamonds, addressing issues like forced labor, civil violence, and environmental damage associated with traditional mining.
• Mined diamond reserves, including major sites like the Argyle mine and Diavik mine, are depleting, with an estimated lifespan of 50 years for 90% of global production.
• India is actively promoting indigenous production of lab-grown diamonds, with the Union Budget 2023-24 announcing support for research in HPHT and CVD technologies.
• The Indian Institute of Technology Madras (IIT Madras) received a five-year grant of approximately ₹243 crore to establish the India Centre for Lab-Grown Diamond (InCent-LGD) in 2023.
• Lab-grown diamonds are chemically, physically, and optically identical to natural diamonds but offer traceability and reduced environmental impact, especially when produced using renewable energy.

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Detailed Insights:

• Traditional diamond mining causes significant environmental damage, including deforestation, soil erosion, water pollution, and can trigger landslides.
• Workers in diamond mines face health risks such as asbestos exposure, leading to diseases like asbestosis and mesothelioma.
• Blood diamonds, used to fund military actions, persist despite the Kimberley Process, due to regulatory gaps allowing smuggling.
• The first synthetic diamonds were created by GE (General Electric) in 1954 using the High Pressure, High Temperature (HPHT) process.
• The Chemical Vapour Deposition (CVD) method for growing diamonds was introduced in 1962, involving carbon-rich gases.
• The cost of lab-grown diamonds has decreased significantly due to improved efficiency in production, making them more affordable.
• Production of lab-grown diamonds using renewable energy sources aligns with the United Nations Sustainable Development Goals (SDGs) and principles of a circular economy.
• Diamonds have diverse applications beyond jewelry, including heavy-duty industrial processes, quantum computing, and semiconductor manufacturing.

Scientific/Technical Concepts Involved:

• High Pressure, High Temperature (HPHT): A method for growing diamonds by mimicking the natural conditions of extreme pressure and heat found in the Earth's mantle.
• Chemical Vapour Deposition (CVD): A process where diamond material is deposited onto a substrate from a gas phase, typically involving carbon-rich gases.
• Asbestosis: A chronic lung disease caused by inhaling asbestos fibers, leading to scarring of lung tissue.
• Circular Economy: An economic system aimed at eliminating waste and the continual use of resources, promoting reuse, repair, and recycling.