While shopping for diamonds, have you ever wondered how I know exactly what I’m paying for? Is this a natural diamond or a laboratory one? It was difficult to distinguish between them, but everything changed in January 2026. It is a new rule, IS 19469:2025, issued by the Bureau of Indian Standards (BIS). This Diamond Terminology Standard makes sure every buyer knows the truth. Why does this matter to you? Because it protects your money and your trust. This blog will show you how these new rules work and what to look for when you go to a jewellery store.

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Understanding the New Diamond Disclosure Norms

The most important part of IS 19469:2025 is how it defines a "diamond." Under this new BIS jewellery standard, the word "diamond" alone can only be used for stones that grow naturally in the earth. If humans make a stone in a machine, the seller cannot call it just a "diamond" anymore. These diamond disclosure norms create five clear groups that sellers must use:

1. Natural Diamonds: Formed naturally inside the earth.
2. Laboratory-Grown Diamonds: Created in a controlled lab environment.
3. Treated Diamonds: Natural diamonds altered to improve appearance.
4. Composite Stones: Made by combining multiple materials.
5. Imitation Diamonds: Look like diamonds but are not real diamonds.

By following these diamond industry standards, India is ensuring that no one is tricked. When you see the word "diamond" on a price tag, you can be confident it refers to a natural stone.

Strict Diamond Labelling Rules for Honest Sales

Have you ever seen an ad for "eco-diamonds" or "cultured diamonds"? The new IS 19469:2025 says these words are confusing and misleading. The standard sets very strict diamond labelling rules to stop sellers from using "fancy" words that hide the truth.
Here are the new rules for selling laboratory-grown diamonds:

• Full Names Only: Sellers must use the full terms "laboratory-grown diamond" or "laboratory-created diamond."
• No Short Forms: They cannot use short names like "LGD" or "lab diamond" in formal papers.
• Banned Words: Words like "pure," "real," "nature’s," or "earth-friendly" are now banned for man-made stones.
• Clear Advertising: Every ad must tell the truth about where the stone came from.

These advertising guidelines help you compare different stones fairly. When labels are clear, you can decide if you want a natural stone or a lab-made one without any guesswork.

Full Disclosure of Treated Diamonds and Modified Stones

Sometimes, a natural diamond has a tiny crack or a dull colour. To fix this, experts use special treatments. While this is okay, the buyer must be aware of it. IS 19469:2025 makes the mandatory disclosure of treated diamonds a top priority.
Jewellers must tell you if a stone has been:

• Laser Drilled: Using a tiny laser to remove dark spots.
• Fracture Filled: Filling cracks with special glass to make them invisible.
• Colour Enhanced: Using heat or pressure to change the diamond’s tint.
• Coated: Adding a thin layer to make the stone shine more.

These diamond industry standards ensure you don't pay a premium for a stone that has been "fixed." Knowing whether a diamond is treated helps you understand its true value and how to care for it over time.

How does IS 19469:2025 Strengthens Consumer Protection and Trust?

The main goal of this standard is to build consumer confidence in the diamond industry. Buying jewellery is a big emotional and financial step. You deserve to know that your investment is safe. By adopting IS 19469:2025, the Indian government is aligning its rules with global standards such as ISO 18323.
This helps you in many ways:

• Fair Prices: You pay the right price for the right type of stone.
• Better Resale Value: Since the labels are clear, selling or trading your jewellery in the future becomes easier.
• Peace of Mind: You can trust your jeweller because they are following a national law.
• Ethical Trade: It encourages everyone in the market to be honest and fair.

The jewellery industry in India is now much safer for every family. Whether you are buying an engagement ring or a gift, these rules help ensure your happy moment stays that way.

Conclusion

The diamond market is changing fast, and IS 19469:2025 is the best tool we have to stay informed. It clears up the confusion between natural and lab-made stones. It stops misleading ads and makes sure every treatment is out in the open. Because of these BIS jewellery standards, the word "diamond" keeps its special meaning.
Next time, when you visit a jewellery shop, look for these labels. Ask the seller whether they follow IS 19469:2025. Honest businesses brighten the industry. With these standards, you can go shopping without worrying and find the stone you need within your budget.