Are Lab Grown Diamonds Real? Everything You Need to Know in 2026
If you have ever searched for diamond jewellery online, you have probably come across the term "lab grown diamonds" and wondered, are they actually real? It is a fair question, and one that thousands of Indian buyers ask every single day.
The short answer is yes. Lab grown diamonds are absolutely real diamonds. But there is a lot more to the story, and understanding it can save you lakhs of rupees on your next jewellery purchase.
Let us break it all down.
What Exactly Are Lab Grown Diamonds?
A lab grown diamond is a diamond that has been created inside a controlled laboratory environment instead of being mined from the earth. Scientists use two primary methods to grow these diamonds:
HPHT (High Pressure High Temperature), This method recreates the intense pressure and heat found deep within the earth's mantle, forcing carbon atoms to crystallise into a diamond structure.
CVD (Chemical Vapour Deposition), In this method, a thin diamond seed is placed inside a chamber filled with carbon-rich gases. These gases break down at extremely high temperatures and carbon atoms slowly deposit onto the seed, building a diamond layer by layer.
Both processes produce diamonds that are chemically, physically, and optically identical to mined diamonds. They are made of pure carbon, arranged in the same crystal structure, and they score a perfect 10 on the Mohs hardness scale, just like any diamond pulled from the ground.
So, What Makes Them "Real"?
This is where a lot of confusion exists. Some people assume lab grown diamonds are the same as cubic zirconia or moissanite. They are not. Those are diamond simulants, stones that look somewhat like diamonds but have completely different chemical compositions.
A lab grown diamond, on the other hand, is a diamond in every sense of the word.
Here is a simple comparison:
| Property | Lab Grown Diamond | Mined Diamond | Moissanite |
|---|---|---|---|
| Chemical Composition | Pure Carbon | Pure Carbon | Silicon Carbide |
| Hardness (Mohs Scale) | 10 | 10 | 9.25 |
| Refractive Index | 2.42 | 2.42 | 2.65 |
| Certified by IGI/SGL | Yes | Yes | Sometimes |
| Origin | Laboratory | Earth's mantle | Laboratory |
Even a trained gemologist cannot tell the difference between a lab grown and a mined diamond with the naked eye. Specialised equipment is needed to distinguish between the two based on minor growth patterns.
In fact, as of January 2026, the Bureau of Indian Standards (BIS) has enforced new terminology standards under IS 19469:2025. These rules clarify that while both are real diamonds, sellers must clearly disclose whether a diamond is lab grown or natural. This regulation is actually a positive step, it protects buyers and adds transparency to the market.
Why Are Lab Grown Diamonds So Much Cheaper?
This is the part that surprises most people. A lab grown diamond can cost 60 to 80 percent less than a mined diamond of the same size and quality.
To put that in perspective, a 1-carat, VS2 clarity, G-colour natural diamond might cost you ₹2 to ₹4 lakh in India. A lab grown diamond with the exact same specifications? Roughly ₹30,000 to ₹50,000.
The reason for this price gap is simple. Mining diamonds is an incredibly expensive process. It involves heavy machinery, massive labour forces, complex supply chains, and environmental disruption. Lab grown diamonds skip all of that. They are produced in weeks rather than billions of years, and the production process is far more efficient.
This does not mean they are cheap or low quality. It simply means the traditional markup associated with mining, logistics, and middlemen has been removed.
Can You Get Lab Grown Diamonds Certified?
Yes, and you absolutely should insist on certification when buying any diamond, lab grown or natural.
Reputable lab grown diamonds come with certifications from internationally recognised laboratories such as IGI (International Gemological Institute) and SGL (Solitaire Gemological Laboratories). These certificates detail the four Cs, Cut, Clarity, Colour, and Carat, and each certified stone has a unique identification number laser-inscribed on its girdle.
When shopping for lab grown diamond jewellery, always look for these certifications. Brands that are transparent about their sourcing and grading are the ones worth trusting.
The India Factor: Why Lab Grown Diamonds Are Booming Here
India is not just a consumer of lab grown diamonds, it is a global powerhouse in their production. Cities like Surat and Mumbai account for the vast majority of India's lab grown diamond output, and the country contributes a significant share to global production.
The Indian lab grown diamond jewellery market is valued at approximately USD 453.7 million in 2026 and is projected to grow at around 14.8 percent annually over the next decade. Major players like Titan (with their beYon brand), Kalyan Jewellers, and CaratLane have entered this space, signalling that lab grown diamonds have firmly moved from niche to mainstream.
But beyond the big names, what has really driven the shift is a new generation of Indian buyers, millennials and Gen Z consumers who care about sustainability, transparency, and value for money. They want real diamonds without the ethical concerns of mining, and they want them at a price that does not require a loan.
What About Resale Value?
Let us be honest about this. Lab grown diamonds currently have very low resale value in the open market. If you are buying a diamond purely as a financial investment, a natural diamond may hold its value slightly better (though even natural diamonds are not great investment assets compared to gold or equities).
However, if you are buying diamond jewellery to wear, to celebrate a milestone, or to express your personal style, lab grown diamonds offer unmatched value. You get a bigger, better-quality stone for a fraction of the price, and you wear it with the confidence that it is a real, certified diamond.
Most people do not buy jewellery to resell it. They buy it to enjoy it. And that is where lab grown diamonds truly shine.
Choosing the Right Brand Matters
With the lab grown diamond market expanding rapidly in India, dozens of brands have entered the space. But not all of them offer the same level of quality, craftsmanship, or transparency.
When choosing a brand, look for these things:
- Certification: Every diamond should come with IGI or SGL certification.
- BIS Hallmarked Gold: The metal setting should carry a BIS hallmark, confirming its purity.
- Design Range: A good brand offers options for every occasion, daily wear, office, parties, engagements, and gifting.
- After-Sale Support: Look for brands that offer lifetime exchange and buyback policies.
- Transparency: The brand should be upfront about its sourcing, manufacturing process, and pricing.
One brand that checks all of these boxes is AYAANI. AYAANI has built a reputation as a leading lab grown diamond jewellery brand focused on minimalist, lightweight, and daily-wear designs.
What sets AYAANI apart is the commitment to making luxury accessible. The collections span everything from delicate everyday studs and pendants to stunning engagement rings, cocktail rings, tennis bracelets, and statement necklaces. Every piece is handcrafted in 9K, 14K, or 18K gold (available in rose, yellow, and white gold) and features SGL and IGI-certified diamonds.
AYAANI also offers a lifetime exchange and buyback policy, which adds a layer of confidence for first-time lab grown diamond buyers. Whether you are buying your first diamond ring or adding to an existing collection, their transparent pricing and wide design range make the experience refreshingly simple.
The Bottom Line
Lab grown diamonds are real diamonds. Full stop. They have the same sparkle, the same hardness, and the same beauty as mined diamonds. The only difference is their origin, one comes from the earth, the other from a laboratory.
In 2026, buying a lab grown diamond is no longer an alternative choice. It is a smart choice. You save significantly, you wear a certified and beautiful stone, and you make a more sustainable decision in the process.
If you are considering your first lab grown diamond purchase, start with a brand that values quality and transparency. AYAANI offers a thoughtfully curated collection that balances elegance with everyday wearability, and every piece comes backed by proper certification and a customer-first approach.
Because real diamonds should not come with unreal price tags.
FAQs
Will a lab grown diamond pass a diamond tester?
Yes. Since lab grown diamonds have the same thermal and electrical conductivity as mined diamonds, they will test positive on standard diamond testers.
Do lab grown diamonds fade or lose their sparkle over time?
No. They are just as durable as natural diamonds. A lab grown diamond will last a lifetime without fading, clouding, or losing its brilliance.
Are lab grown diamonds ethical?
Yes. They are conflict-free and have a significantly lower environmental footprint compared to mined diamonds. No large-scale land excavation is involved in their production.
Can you use a lab grown diamond for an engagement ring?
Absolutely. A growing number of Indian couples are choosing lab grown diamonds for engagement rings because they can afford a larger, higher-quality stone within the same budget.
How can you verify if your diamond is lab grown?
Every certified lab grown diamond has a unique number inscribed on its girdle. You can verify this number on the certifying laboratory's website.