Lab Grown Diamonds in India
Lab grown diamonds are real diamonds grown above ground instead of mined. They have the same carbon structure, hardness, fire and sparkle as natural diamonds, are graded by the same laboratories, and cost almost 90% less. Goenka Jewellers, established in Kolkata in 2006, sells only lab grown diamond jewellery: every diamond is IGI certified and set in hallmarked 9K, 14K or 18K gold, with free insured shipping across India, a showroom in Kolkata and home viewings in Delhi.
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What are lab grown diamonds?
A lab grown diamond is pure crystallised carbon, exactly like a mined diamond. The only difference is where it formed: in a growth chamber over a few weeks instead of deep underground over millions of years. You may also see them called lab created, man-made, cultured or CVD diamonds. They are not moissanite or cubic zirconia, which are different materials that only look like diamond.
- Chemically identical: 100% carbon in the same crystal lattice as a natural diamond.
- Same hardness: 10 on the Mohs scale, so they wear every day for a lifetime.
- Same grading: cut, colour, clarity and carat are graded by the same labs, with a certificate for every stone.
- Same look: no jeweller can tell a lab grown diamond from a mined one by eye or with a loupe. Only laboratory equipment can detect the growth pattern.
Most lab grown diamonds in India are made by CVD (chemical vapour deposition), where a diamond seed grows layer by layer inside a chamber filled with carbon-rich gas. Goenka Jewellers uses CVD diamonds.
Lab grown diamonds vs natural diamonds: the smarter choice
For the same budget, a lab grown diamond gives you a bigger or finer stone, with the same certificate and the same sparkle.
| What you compare | Lab grown diamond | Natural (mined) diamond |
|---|---|---|
| Material | Pure carbon diamond | Pure carbon diamond |
| Hardness and sparkle | 10 on the Mohs scale, identical fire | 10 on the Mohs scale |
| Certification | IGI graded, same 4Cs | Graded by the same labs |
| Price for the same grade | Almost 90% less | Full mined price |
| Stone for your budget | Bigger carat or higher colour and clarity | Smaller stone |
| Origin | Conflict-free, no mining | Mined |
| Value protection at Goenka | Exchange and cash buyback at 100% of the gold value and 80% of the diamond value at market rate (T&C apply) | Not applicable |
Read more: lab grown vs natural diamonds and 10 lab grown diamond myths busted.
Lab grown diamond price in India
The price of a lab grown diamond depends on carat weight, shape, colour, clarity and cut, plus the purity and weight of the gold it is set in. Round brilliants cost more per carat than fancy shapes of the same grade, and price rises steeply with carat weight. We offer the most competitive lab grown diamond price in India. Share your budget with us and we will show you the best diamond it can buy.
Guides: lab grown diamond price guide for India and resale value and buyback explained. Collections by budget: lab grown diamond jewellery under ₹50,000 and under ₹1 lakh.
How to choose a lab grown diamond: the 4Cs
- Carat. Because lab grown costs almost 90% less, most buyers move up a size: a 1 carat or 2 carat solitaire is within reach of a budget that bought a much smaller mined stone. See our 1 carat, 2 carat and 3 carat lab grown diamond rings.
- Cut. Choose an Excellent or Very Good cut. Cut controls the sparkle more than any other factor.
- Colour. D to F is colourless; G to H looks white in gold at a lower price. Lab grown pricing makes D to F colours affordable.
- Clarity. We recommend VVS1 or VVS2: inclusions are invisible to the eye and extremely hard to find even under 10x magnification, and lab grown pricing makes these top grades affordable.
Full guide: the 4Cs of lab grown diamonds.
IGI certified lab grown diamonds
Every lab grown diamond at Goenka Jewellers comes with an IGI (International Gemological Institute) certificate that states the carat weight, shape, colour, clarity and cut, and confirms the stone is laboratory grown. Before you buy, from us or anyone else:
- Ask for the certificate and verify the report number on the IGI website.
- Check that the gold carries a BIS hallmark.
- Make sure the invoice says "lab grown diamond", with carat weight and gold purity, as India's BIS rules on diamond disclosure require.
- Read the return, exchange and buyback terms before you pay.
Lab grown diamond jewellery at Goenka Jewellers
- Lab grown diamond rings, including engagement rings, solitaire rings, eternity bands and cocktail rings
- Lab grown diamond earrings: solitaire studs, hoops, danglers and long earrings
- Lab grown diamond necklaces and bridal diamond jewellery
- Lab grown diamond bracelets, tennis bracelets, bangles and kadas
- Diamond pendants and diamond mangalsutras
- Lab grown diamond jewellery for men and kids' diamond jewellery
Choose a ready to ship piece for same-day delivery in Kolkata and Delhi, or have any design made to order in your size, gold purity and carat weight. Most made-to-order pieces are delivered in 15–20 days.
Where to buy lab grown diamonds in India
Searching for "lab grown diamonds near me"? Here is how to see Goenka Jewellers' pieces wherever you are in India.
- Kolkata showroom: 4/1 Camac Street, Kolkata, West Bengal 700071, in the Park Street area. Open every day, 10:30 am – 7:30 pm. Walk in, or book a visit and we will keep your shortlist ready with the IGI certificates.
- Delhi home viewings: we bring a curated selection to your home in Delhi, so you can try pieces before you decide.
- Everywhere else in India: book a WhatsApp video consultation to see the diamonds live, then order online with free insured shipping and cash on delivery on eligible orders. We deliver to Mumbai, Bangalore, Hyderabad, Chennai, Pune and every other pin code.
- Outside India: international shipping is available worldwide via DHL/FedEx at an additional charge.
Buyback, exchange and lifetime warranty
Goenka Jewellers offers exchange and cash buyback at 100% of the gold value and 80% of the diamond value at market rate on the date of return (T&C apply). Every piece carries a lifetime warranty. Exchanges are accepted within 2 days of delivery, subject to availability; made-to-order pieces are non-returnable. Full details are in our return and exchange policy.
Why buy lab grown diamonds from Goenka Jewellers
- Established in 2006 in Kolkata, a family-run jeweller and member of GJEPC, GJC, FICCI, MCCI and BNI.
- IGI certified lab grown diamonds only, set in BIS hallmarked gold.
- Almost 90% less than natural diamonds of the same grade, with the most competitive lab grown diamond price in India.
- Exchange and cash buyback at 100% of the gold value and 80% of the diamond value at market rate (T&C apply).
- See before you buy: Kolkata showroom, Delhi home viewings and video consultations across India.
- Custom design: bring a photo or sketch and we make it in 15–20 days.
- Conflict-free diamonds with no mining, as explained in our guide to the ethics of lab grown diamonds.
Lab grown diamonds: FAQs
Are lab grown diamonds real diamonds?
Yes. Lab grown diamonds are real diamonds made of pure carbon. They are chemically, physically and optically identical to mined diamonds, score 10 on the Mohs hardness scale and are graded by the same laboratories.
Can a jeweller tell a lab grown diamond from a natural diamond?
Not by eye or with a loupe. Lab grown and natural diamonds look the same and test as diamond on a standard diamond tester. Only a gemological laboratory with specialised equipment can identify a diamond as lab grown, which is why every Goenka diamond comes with an IGI certificate that states its origin.
How are lab grown diamonds made?
By CVD (chemical vapour deposition) or HPHT (high pressure, high temperature). In CVD, a thin diamond seed grows layer by layer inside a chamber filled with carbon-rich gas over a few weeks. Goenka Jewellers uses CVD diamonds.
Are lab grown diamonds certified?
Yes. Every lab grown diamond at Goenka Jewellers comes with an IGI certificate, and the gold is BIS hallmarked. You can verify the report number on the IGI website.
Do lab grown diamonds have resale value?
Yes, with us. Goenka Jewellers offers exchange and cash buyback at 100% of the gold value and 80% of the diamond value at market rate on the date of return (T&C apply), so your purchase keeps a guaranteed exit value.
Where can I buy lab grown diamonds near me?
Visit the Goenka Jewellers showroom at 4/1 Camac Street, Kolkata, West Bengal 700071, open every day from 10:30 am to 7:30 pm, or book a home viewing in Delhi. Anywhere else in India, book a video consultation and order online with free insured shipping.
Can I buy lab grown diamonds online in India?
Yes. Order at goenkajewellers.com with free insured shipping across India and cash on delivery on eligible orders. Ready to ship pieces are delivered same day in Kolkata and Delhi; made-to-order pieces take 15–20 days.
Which clarity should I choose for a lab grown diamond?
We recommend VVS1 or VVS2. Inclusions at these grades are invisible to the eye and very hard to find under 10x magnification, and lab grown pricing makes them affordable.
What are lab grown diamond prices in India?
We offer the most competitive lab grown diamond price in India. The final price depends on the diamond's carat, shape, colour and clarity, and on the gold purity and weight.