BIS hallmark codes 375 to 999 decoded as India's six-digit HUID regime tightens gold purity rules
An explainer maps gold purity stamps—375 (9K), 585 (14K), 750 (18K), 916 (22K), and 999 (24K)—against India's mandatory BIS hallmarking regime. The 2021 Quality Control Order makes hallmarking compulsory for 14/18/22-carat jewellery in notified districts, with HUID traceability now standard at A&H centres.
Explainer on gold hallmark purity codes (375-999) and India's mandatory BIS hallmarking regime, including the six-digit HUID system, A&H centres, and the 2021 Quality Control Order making hallmarking compulsory for 14/18/22-carat jewellery in select districts.
Why this matters
BIS continues tightening gold purity enforcement, extending the 2021 QCO framework with HUID traceability now embedded across A&H centres and notified districts.
Retail-brand theme steady at 264 signals over 90 days, signalling consistent compliance and brand-governance activity.