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India’s $6.2-billion natural-diamond market (projected $8.6 bn by 2028) is shifting “beyond the 4Cs” to proof of origin. Leading jewellers are tightening chain-of-custody with blockchain traceability platforms (e.g., De Beers’ Tracr/producer systems), Responsible Jewellery Council (RJC) standards, and clearer in-store provenance labelling, moves aimed at assuring buyers on ethical sourcing while the wider gems trade targets $120 bn by 2030.
Why it matters: consumers are rewarding brands that can trace stones from mine to market, and industry analysts say transparency pushes are opening new opportunities across the diamond value chain.
