<h1>Voluntary digital hallmarking for silver jewellery from Sept 1, 2025 adds HUID, purity grades 958 and 999 for traceability</h1> The government has introduced voluntary hallmarking for silver jewellery effective September 1, 2025, under a revised standard (IS 2112:2025) that implements a digital Hallmarking Unique Identification (HUID) system to enhance traceability and verify metal purity. Consumers can retrieve article type, purity grade, hallmark date, testing-centre details and jeweller registration via a mobile app. Two purity grades (958 and 999) were added, and the hallmark now comprises a standard mark denoting 'SILVER,' the purity grade and the HUID. Around 230 recognised testing centres operate across 87 districts; over 3.2 million silver articles were hallmarked in 2024-25.