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Lab Grown Diamond Rings Online

Lab grown diamond rings in this collection are set with real diamonds. Not simulants, not moissanite. Real diamonds, grown in a laboratory using CVD (Chemical Vapour Deposition) or HPHT (High Pressure High Temperature) technology.

The result is a stone that is chemically, physically, and optically identical to a mined diamond. Same carbon structure. Same hardness, 10 on the Mohs scale. Same refractive index, the same fire, the same brilliance.

Every diamond in this collection is certified by IGI. The certificate documents the 4Cs: cut, colour, clarity, and carat. It explicitly states "Laboratory Grown." This is what separates a certified lab grown ring from an uncertified simulant.

Goenka Jewellers has manufactured lab grown diamond jewellery in Kolkata since 2006. The collection spans 1 to 18 carats, set in 14K and 18K BIS hallmarked gold.

Ring Styles in This Collection

Solitaire Rings

One diamond, centre-set. Available in round brilliant, oval, pear, princess, and cushion cuts. Round brilliant reflects the most light. Oval creates the appearance of a larger stone for the same carat weight, a practical choice if size on finger matters. The most-purchased style for engagements in this collection.

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Engagement Rings

Lab grown diamond engagement rings for women at Goenka come in single-stone, halo, and pave settings in 14K and 18K gold. All IGI certified. Custom engraving available on most designs. Prices start around Rs.65,000 for a 0.7ct in 18K white gold.

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Cocktail Rings

Multi-stone and cluster designs with higher total diamond weight. Better suited to occasions than everyday wear. Most designs start at 1ct total weight.

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Daily Wear Rings

Lightweight bezel and prong settings built for regular use. 14K gold is the better metal choice here. It is harder than 18K and holds up to daily contact better. Stackable options available.

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Men's Diamond Rings

Band, signet, and cluster styles in yellow and white gold. Round and princess cut diamonds. Available in 14K and 18K.

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Couple Bands

Matching sets with shared diamond accents. Custom sizing and engraving available on all designs.

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How to Choose a Lab Grown Diamond Ring

Start with cut, not carat. Cut grade determines how much light returns through the top of the stone. An Excellent-cut 0.7ct diamond will visually outperform a Fair-cut 1ct stone. This is the most common mistake buyers make.

On colour: D to F grades are colourless. G to I are near-colourless. The difference is not visible to most people without a comparison stone beside it. G to I is a reasonable budget choice.

On clarity: VVS1 and VVS2 are the clarity grades we recommend. Their inclusions are so minute that they are extremely difficult to find even under 10x magnification, so the diamond looks flawless at every carat weight.

On metal: 18K gold is 75% pure and looks richer, especially in yellow gold. 14K is 58.5% pure and harder, better for rings worn every day. Both options in this collection are BIS hallmarked.

One thing worth knowing before buying: lab grown diamonds are real diamonds, with the same brilliance, hardness and IGI certification as mined diamonds, at almost 90% less. That saving buys a bigger, better-graded stone, and Goenka's exchange and cash buyback at 100% of the gold value and 80% of the diamond value at market rate (T&C apply) protects your purchase. For a certified, brilliant diamond ring, lab grown is simply the smarter choice.

For ring sizing, Goenka offers complimentary resizing within 30 days of delivery if ordering online.

Lab Grown vs Natural Diamond Rings

Lab grown diamonds and natural diamonds differ only in origin and price:

• Carbon structure: Identical in both. Same hardness of 10 on the Mohs scale, same refractive index, same fire and brilliance.

• Certification: Both carry IGI grading certificates with full 4Cs documentation.

• Price: Lab grown costs almost 90% less than a natural diamond of the same cut, colour, and clarity grade.

• Origin: Lab grown from a CVD or HPHT laboratory. Natural from earth-mined sources.

• Value: Lab grown puts a bigger, finer, certified diamond within your budget, and every Goenka piece comes with exchange and cash buyback at 100% of the gold value and 80% of the diamond value at market rate (T&C apply).

The price gap is the main reason most buyers choose lab grown. A lab grown diamond costs almost 90% less than a mined diamond of the same grade.

Price Ranges in This Collection

• Under Rs.25,000: 0.15ct to 0.3ct, 14K gold. Best for daily wear, gifting, stackable rings.

• Rs.25,000 to Rs.50,000: 0.3ct to 0.7ct, solitaires and pave bands. Best for diamond rings for women, engagement on a budget.

• Rs.50,000 to Rs.1 Lakh: 0.7ct to 1.2ct, Excellent cut, VVS clarity. Best for most popular engagement ring segment.

• Above Rs.1 Lakh: 1.5ct and above, 18K gold. Best for statement rings, large solitaires, custom designs.

All purchases include the IGI diamond certificate and BIS hallmark documentation.

About Goenka Jewellers

Goenka Jewellers has manufactured lab grown diamond jewellery since 2006, with production based in Kolkata. Pieces are sold directly, without third-party retail markup.

Every ring purchase includes:

• IGI certificate with every diamond

• BIS hallmark certificate with every gold piece

• Exchange and cash buyback at 100% of the gold value and 80% of the diamond value at market rate (T&C apply)

• Lifetime manufacturing warranty

• Free shipping across India

• A showroom in Kolkata for in-person consultations, and home viewings in Delhi

•Custom and made-to-order pieces available