The Bureau of Indian Standards (BIS) has adopted IS 19469:2025, a national standard that sets out clear terminology and disclosure for natural diamonds, laboratory-grown diamonds, treated diamonds, composite stones and imitations. Reports indicate it was adopted in January 2026.
What the standard says
- The word "diamond" on its own refers to a natural diamond.
- Laboratory-grown stones must be described as "laboratory-grown diamond" or "laboratory-created diamond".
- Shortened forms such as "lab-grown", "lab diamond" and "LGD" are not the approved terms for formal use.
- Misleading descriptions such as "fake" or "artificial" are not permitted for laboratory-grown diamonds.
- The production method (CVD or HPHT) and any treatments should be disclosed.
The standard is based on the international standard ISO 18323, which covers consumer confidence in the diamond industry.
Why this is good news
- Consumer trust: buyers know exactly what they are getting.
- A level playing field: honest sellers are no longer undercut by vague labelling.
- Respect for the product: laboratory-grown diamonds get a clear, formal name, not a dismissive one.
What it means for buyers
When you buy in India, look for "laboratory-grown diamond" on the tag, the invoice and the certificate, along with the carat weight and grades.
What it means for jewellers
Check your tags, invoices, website copy and certificates to make sure they use the approved terms and disclose growth method and treatment. It's a small change that builds a lot of trust.
Our practice
We describe every stone we sell as a laboratory-grown diamond, with its growth method and grading details. Read our disclaimer and diamond disclosure.
Sources: Indian Jeweller, Diamond World, Retail Jeweller India
