The Bureau of Indian Standards (BIS) has notified IS 19469:2025, adopting a modified version of ISO 18323:2015 on consumer confidence in the diamond industry, to standardise diamond terminology and disclosure practices in India.

The standard was launched in Mumbai and follows an initiative by the Gem & Jewellery Export Promotion Council (GJEPC). It was developed under the BIS MTD 10 Committee, with deliberations involving the Ministry of Consumer Affairs and an industry working group.

India’s jewellery sector was valued at approximately $80–85 billion in FY24 and is projected to grow to $225–245 billion by FY35. Within this, diamond jewellery represents an estimated $10 billion market, making India the world’s second-largest diamond jewellery market. Demand is expected to double by 2030.

IS 19469:2025 sets out terminology and disclosure requirements for natural diamonds, laboratory-grown diamonds, treated diamonds, composite stones and imitations. It specifies that the term “diamond” applies only to natural diamonds, while laboratory-grown stones must be disclosed using approved terms.

Under the standard, India adopts the terms 'laboratory-grown diamond' and 'laboratory-created diamond', while disallowing descriptors such as 'fake' or 'artificial'. Abbreviations including 'lab-grown', 'lab-created', 'lab diamond' and 'LGD' are not permitted. Full disclosure of treatments is mandated.

GJEPC Chairman Kirit Bhansali said, “We thank BIS for launching the new standard aligned with a globally harmonised framework for diamonds. This standard will enhance consumer confidence and credibility in both natural and laboratory-grown diamond segments.”

He added, “This collaboration between BIS, GJEPC, and industry stakeholders has ensured that consumers are protected and that the trade operates under uniform, internationally recognised definitions.”

The notification will serve as a reference for jewellers, traders, laboratories, exporters, importers and consumer protection authorities across India.