Lab Grown Diamond Engagement Rings, IGI Certified

Lab grown diamond engagement rings in this collection are set with real, certified diamonds. IGI or GIA graded. Same carbon structure as a mined diamond. Same hardness, same brilliance. The certificate will say "Laboratory Grown."

Diamond engagement rings for women at Goenka are available in solitaire, halo, pave, three-stone, and vintage settings in 14K and 18K gold. Prices start around Rs.45,000 for a 0.5ct in 14K and go well above Rs.3,00,000 for 2ct and above in 18K.

Goenka Jewellers has made engagement rings in Kolkata since 2006. The collection is customisable. If the exact design you want is not here, custom orders are available. Most custom pieces take 2 to 3 weeks.

One thing buyers regularly ask: are these the same as a natural diamond engagement ring? The answer is yes, with one exception. The resale market for lab grown diamonds is lower than for natural diamonds. Worth knowing before you buy.

Engagement Ring Styles in This Collection

Solitaire Engagement Rings

One diamond. Nothing else. The most purchased engagement ring style globally and in this collection. Available in round brilliant, oval, pear, princess, emerald, and cushion cuts. Four-prong and six-prong settings in 14K and 18K gold.

Round brilliant is the most forgiving cut for buyers who are unsure. It reflects light from all angles. Oval and pear run longer, which makes the finger look more elongated. Emerald cut is bold and geometric.

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Halo Engagement Rings

A central diamond surrounded by a ring of smaller diamonds. The halo makes the centre stone appear larger than its actual carat weight. Common choice for buyers who want maximum visual impact at a given budget.

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Pave Engagement Rings

Small diamonds set closely together along the band, creating a surface that appears fully covered in diamonds. Often combined with a solitaire or halo centre stone. Adds total carat weight without significantly increasing the price.

Three-Stone Rings

A centre diamond flanked by two smaller stones. The three stones traditionally represent the past, present, and future of a relationship, though that is an origin story invented by De Beers in the 1990s. The design itself is clean and substantial.

Diamond Wedding Rings for Women

Eternity bands and half-eternity bands with lab grown diamonds set all the way or halfway around. Designed to be worn alongside an engagement ring or as a standalone piece. Diamond wedding rings for women in this collection start at Rs.30,000 in 14K gold.

Browse Wedding Bands

Vintage and Antique-Inspired

Filigree settings, milgrain detail, and old European cut diamonds. These designs take longer to produce. Custom lead time applies.

How to Choose an Engagement Ring

Diamond shape first. It determines the look of the ring more than anything else. Round brilliant is safe. Oval is a strong second choice. Try a few shapes before deciding if possible.

Cut quality over carat weight. A 0.7ct Excellent-cut diamond will look better than a 1ct Good-cut. Cut is what makes light bounce back through the table. Do not compromise on cut to get a larger stone.

Setting for her lifestyle. A high solitaire prong setting is traditional and shows the diamond clearly but catches on fabric. A bezel or low-profile setting is more practical for someone who is active or works with their hands.

Metal purity: 18K is the engagement ring standard in India. Richer colour, more prestigious. 14K is a valid choice for buyers on a tighter budget who want a larger diamond for the same price. The diamond quality is identical.

If you are unsure, book an in-person consultation at the Kolkata or Delhi boutique. Goenka's team helps narrow the choice based on budget, stone shape preference, and lifestyle.

Lab Grown vs Natural Diamond Engagement Rings

The question most buyers have: is a lab grown engagement ring as good as a natural diamond engagement ring? The diamonds are physically the same. The certificate documents the same 4Cs. The difference is origin and, currently, resale value.

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 or GIA grading certificates with full 4Cs documentation.

•     Price: Lab grown costs 60 to 75% 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.

•     Secondary market: Lab grown has a lower secondary resale market at this time. Natural diamonds have an established resale market. Worth knowing before purchase.

For a 1ct round brilliant Excellent-cut lab grown diamond ring in 18K gold, expect to pay Rs.75,000 to Rs.1,20,000 at Goenka. A natural diamond of the same grade would cost Rs.2,00,000 or more. The saving is significant.

Price Ranges in This Collection

•     Under Rs.45,000: 0.3ct to 0.5ct, 14K gold. Best for minimal solitaires, pave bands.

•     Rs.45,000 to Rs.90,000: 0.5ct to 0.9ct, 14K or 18K. Best for solitaires, halo, three-stone rings.

•     Rs.90,000 to Rs.2,00,000: 0.9ct to 1.5ct, 18K gold. Best for most popular engagement ring range.

•     Above Rs.2,00,000: 1.5ct and above, 18K gold. Best for premium solitaires, custom designs.

All purchases include the IGI or GIA 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 purchase includes:

•     IGI or GIA certificate with every diamond

•     BIS hallmark certificate with every gold piece

•     100% exchange guarantee on all jewellery

•     Lifetime manufacturing warranty

•     Free shipping across India

•     Physical boutiques in Kolkata and Delhi

•Custom and made-to-order pieces available