Diamonds have always been a symbol of love, wealth, and prestige. But in recent years, lab-grown diamonds (also called man-made or cultured diamonds) have entered the market as a more affordable and ethical alternative.
If you’re considering buying one, here’s a complete guide to help you decide wisely.
What Are Lab-Grown Diamonds?
Lab-grown diamonds are not “fake” — they are real diamonds, created in a lab using high-tech processes that mimic how natural diamonds form underground.
- Methods used:
- HPHT (High Pressure High Temperature)
- CVD (Chemical Vapour Deposition)
- Composition: Same physical, chemical, and optical properties as mined diamonds.

👉 Even professional gemologists often need specialized equipment to distinguish them.
Advantages of Lab-Grown Diamonds
- Affordable Luxury – Typically 30–50% cheaper than natural diamonds of similar size and quality.
- Ethical & Sustainable – No mining, less environmental damage, conflict-free.
- Bigger Stones for Less – Buyers can afford a larger carat size within the same budget.
- Quality Options – Lab-grown diamonds can be made with fewer inclusions, offering near-perfect clarity.
Disadvantages of Lab-Grown Diamonds
- Resale Value – Natural diamonds retain better resale value. Lab-grown often depreciate faster.
- Perception – Many still consider natural diamonds “superior” in prestige and tradition.
- Market Awareness – While demand is growing, not all jewellers in India stock or buy back lab-grown diamonds.
Lab-Grown vs Natural Diamonds
| Feature | Lab-Grown Diamonds | Natural Diamonds |
|---|---|---|
| Price | 30–50% cheaper | Expensive |
| Durability | Same (10 Mohs) | Same (10 Mohs) |
| Ethics | Conflict-free | Mining concerns |
| Resale Value | Low | Higher |
| Availability | Growing | Widely accepted |
Certification & Hallmarking
When buying a lab-grown diamond:
- Ask for IGI, GIA, or SGL certification.
- The certificate should clearly mention “lab-grown” or “synthetic diamond.”
- Always buy from BIS-registered jewellers in India.
👉 Just like gold, you should verify authenticity (see how to check hallmark in gold).
Lab-Grown Diamond Prices in India (2025)
- 1 carat lab-grown diamond: ₹50,000 – ₹80,000 (depending on cut/clarity)
- 1 carat natural diamond: ₹1,00,000 – ₹1,80,000+
That’s nearly half the price, making them attractive for younger buyers.
Caring for Lab-Grown Diamonds
Caring is the same as natural diamonds:
- Clean gently at home (see how to clean gold & diamond jewellery safely).
- Store separately to avoid scratches.
- Avoid harsh chemicals like bleach or chlorine.
Should You Buy Lab-Grown Diamonds?
- Yes, if: You want a larger stone, affordable pricing, and care about sustainability.
- No, if: You’re buying purely for investment or long-term resale value.
For weddings, engagements, or fashion, lab-grown diamonds are a smart modern choice. For financial investment, natural diamonds remain the safer bet.
❓ FAQ – Lab-Grown Diamonds
Q1. Are lab-grown diamonds real?
Yes. They have the same properties as mined diamonds, just created in a lab.
Q2. Do lab-grown diamonds last forever?
Yes. They’re just as durable as natural diamonds (10 Mohs hardness).
Q3. Why are lab-grown diamonds cheaper?
They avoid costly mining and supply chains, making them 30–50% less expensive.
Q4. Can you tell the difference between lab and natural diamonds?
Not by the naked eye. Special gemological equipment is needed.
Q5. Are lab-grown diamonds worth buying in India?
Yes, if you value affordability and ethics. Just remember resale is weaker compared to natural diamonds.