If you have bought, gifted, or even just browsed for diamond jewellery in India in the last few years, you have almost certainly encountered confusing language. "Cultured diamonds." "Earth-friendly diamonds." "Eco diamonds." "Pure diamonds." Descriptions that sounded natural but were not always clearly anything at all.
In January 2026, India's Bureau of Indian Standards (BIS) officially put an end to that. A new national standard — IS 19469:2025 — came into force and changed the rules on how diamonds must be described, disclosed, and sold across the country. It is one of the most significant regulatory shifts the Indian jewellery industry has seen in years, and yet most buyers do not know it happened.
At Zorii, we believe clarity is not just good gemology — it is good business. So here is everything you need to understand about the new rules, what they mean for you as a buyer, and why we think this is genuinely good news for everyone who loves lab-grown diamonds.
What IS 19469:2025 actually says
The BIS standard, which became effective on 27 January 2026, is India's adaptation of an international benchmark — ISO 18323:2015, the global framework for consumer confidence in the diamond industry. Its core provisions are straightforward.
The word "diamond," used on its own, now legally means a natural diamond. A jeweller who labels a product simply as a "diamond ring" or "diamond earrings" is, under this standard, representing that the stones are mined from the earth. There is no ambiguity left.
Laboratory-grown diamonds must be identified using the full, approved terms. The only two descriptions now permitted in commercial settings are "laboratory-grown diamond" or "laboratory-created diamond." Everything else — shorthand, marketing language, softening descriptors — is off the table for labelling and advertising.
A long list of previously common terms is now prohibited. BIS has specifically banned the use of "cultured," "cultivated," "nature's," "earth-friendly," "karma-free," "conflict-free," "pure," and "eco" as descriptors that could imply a lab-grown stone is the same as, or equivalent to, a naturally mined diamond. The rationale is simple: these terms created confusion at precisely the moment when a buyer needed clarity.
Full production method disclosure is now required. Sellers must state whether a stone was grown by Chemical Vapour Deposition (CVD) or High Pressure High Temperature (HPHT). Any post-growth treatments or enhancements must also be disclosed. There is no longer any cover for vague provenance.
The penalties for non-compliance are substantial. Retailers found in violation of the standard face fines of up to ₹2 lakh, product seizures, sales bans, and in cases of deliberately misleading advertising, imprisonment of up to two years.
Why this was necessary
To understand why these rules matter, it helps to understand the problem they are solving.
India's jewellery market is one of the largest in the world — worth close to ₹6.7 lakh crore in FY24. Within it, the lab-grown diamond segment has grown sharply. India now processes roughly 90% of the world's diamonds for cutting and polishing, and in early 2026 lab-grown diamond exports from India surpassed natural diamonds in volume for the first time in the country's history.
That growth is exciting. But it brought a problem: the absence of standardised language created a grey zone that some sellers exploited, and that even well-intentioned sellers navigated inconsistently. A buyer who searched for "diamond pendant" on an e-commerce platform might receive results ranging from natural mined stones to lab-grown diamonds to diamond simulants — all described with similar language, some of it deliberately crafted to obscure the distinction.
The confusion was real, and it harmed both kinds of buyers. Customers who wanted lab-grown diamonds sometimes struggled to verify what they were getting. Customers who wanted natural diamonds sometimes paid natural diamond prices for something quite different. The standard closes that gap on both sides.
What this means if you are buying a lab-grown diamond
The new rules are, in one important sense, simply the industry catching up to what responsible sellers like Zorii were already doing. Every piece in our collection is sold with full disclosure of its laboratory origin, its growth method, and its IGI certification. That has always been our practice.
But the standard gives that practice legal weight, and it gives you — the buyer — a clear framework of rights.
You are entitled to full disclosure before you buy. If a seller cannot confirm in writing whether a stone is natural or laboratory-grown, they are not in compliance with IS 19469:2025. That is a signal worth paying attention to.
Your IGI certificate is now your compliance document. An IGI grading report for a lab-grown diamond explicitly states the stone's laboratory origin and its growth method. A seller who provides this certificate at the point of purchase is meeting the standard's disclosure requirement. At Zorii, every stone comes with an IGI certificate as a matter of course — not because it is now required, but because it is the only honest way to sell.
You can ask for the growth method by name. Under IS 19469:2025, sellers must disclose whether a stone is CVD or HPHT grown. At Zorii, our diamonds are grown using CVD technology — a process that produces exceptionally pure, consistent stones with exceptional clarity characteristics. You should always know this before you buy.
A word on what the standard does not say
There is a nuance here worth addressing directly, because it has been misrepresented in some coverage.
IS 19469:2025 does not suggest that laboratory-grown diamonds are inferior, fake, or of lesser quality than natural diamonds. It does not say that. The standard is about terminology and disclosure, not about value judgements. Laboratory-grown and natural diamonds are chemically, physically, and optically identical — a fact that neither the BIS standard nor any gemological authority disputes.
What the standard does is insist that buyers know which one they are getting, in plain language, before they spend their money. That is a consumer protection measure, not a product ranking. We welcome it entirely.
What good looks like now
The practical effect of IS 19469:2025 is that the bar for acceptable conduct in the Indian jewellery industry has been raised. Sellers who relied on ambiguous language to obscure the nature of what they were selling can no longer do so legally. And buyers who walk into a store or open an app now have a clear standard against which to measure what they are being told.
At Zorii, what this looks like in practice is simple. Every product is described as a laboratory-grown diamond, not a diamond. Every listing specifies CVD as the growth method. Every purchase includes an IGI grading report. And every conversation we have with a customer — before, during, and after a sale — is built on the assumption that you deserve to know exactly what you are buying and why it is worth it.
The standard has formalised what we already believed. Transparency is not a compliance burden. It is the foundation of a purchase that means something.
Three questions to ask any diamond seller in 2026
Before you buy, ask these three things. Any reputable seller should answer all three without hesitation.
1. Is this stone natural or laboratory-grown? The answer should be immediate and unambiguous. Under IS 19469:2025, there is no longer any middle ground in the language.
2. What is the growth method — CVD or HPHT? This is a technical detail, but you have a right to know it, and the standard now requires disclosure.
3. Can I see the IGI or GIA certificate? The certificate should explicitly state the stone's laboratory origin, its 4Cs grading, and its growth method. If a seller cannot produce this, or is unwilling to, walk away.
The Indian diamond industry is maturing fast. Lab-grown diamonds have moved from a niche alternative to a mainstream choice — backed by Surat's world-class manufacturing, growing domestic retail infrastructure, and now, for the first time, a clear national standard that puts the buyer's right to accurate information at the centre of every transaction.
IS 19469:2025 is not a constraint on the lab-grown diamond market. It is a signal that the market has grown up enough to deserve proper rules.
At Zorii, we have always operated this way. Now the law agrees with us.
Every Zorii diamond is SGL/IGI-certified, CVD-grown, and fully disclosed — because that is the only kind of diamond worth wearing.
