Lab Grown Diamond Necklaces Online

Lab grown diamond necklaces in this collection are set with real diamonds. Not cubic zirconia, not moissanite. Real diamonds, grown in a laboratory using CVD or HPHT technology, certified by IGI or GIA.

Every certificate documents the diamond's 4Cs: cut, colour, clarity, and carat. It explicitly states "Laboratory Grown." This is the only difference from a mined diamond. The carbon structure, hardness, refractive index, and brilliance are identical.

Whether you are looking for a lab grown diamond necklace for daily wear, a gift, or a special occasion, this collection covers pendants, sets, tennis necklaces, and layering styles in 14K and 18K BIS hallmarked gold.

Goenka Jewellers has manufactured lab grown diamond jewelry in Kolkata since 2006. Pieces are sold directly, without retail markup.

Necklace Styles in This Collection

Solitaire Pendants

A single certified diamond on a gold chain. Available in round brilliant, oval, pear, and marquise cuts. The most versatile style in the collection. Pairs well with formal and casual wear.

Browse Solitaire Pendants 

Diamond Necklace Sets

Matching necklace and earring combinations from the diamond necklace set range. Designed for weddings, engagements, and festive occasions. Available in 14K and 18K gold with certified diamonds across all pieces in the set.

Browse Necklace Sets

Tennis Necklaces

A continuous line of prong-set diamonds in equal size and cut. Most designs use round brilliant diamonds in white or yellow gold. Best suited for formal occasions and gifting.

Browse Tennis Necklaces

Layering Necklaces

Lightweight pendant and chain combinations designed for stacking. Available in multiple lengths. A practical choice for everyday wear.

Browse Layering Necklaces

Statement Necklaces

Multi-stone and cluster designs with higher total diamond weight. Suited to special occasions. Available from 1ct total weight upwards.

Mangalsutra Pendants

Lab grown diamond mangalsutra pendants in 14K and 18K gold. Available in traditional and contemporary designs. All diamonds IGI or GIA certified.

Browse Mangalsutra Pendants

How to Choose a Lab Grown Diamond Necklace

For pendants and solitaires, start with diamond shape. Round brilliant reflects the most light and is the most popular. Oval and pear create an elongating effect on the neckline.

On chain length: 16 inches sits at the collarbone. 18 inches falls just below. 20 to 24 inches is a longer, layering length. For sets, chain length is usually fixed to the pendant design.

On carat for necklaces: 0.3ct to 0.7ct pendants are the most practical daily wear range. For statement pieces and sets, 1ct total weight and above gives visible presence.

On metal: White gold shows diamond brilliance most clearly. Yellow gold is warmer and complements most skin tones. Rose gold is a contemporary choice. 18K is richer in colour. 14K is harder and more durable for daily wear.

Lab Grown vs Natural Diamond Necklaces

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.

Lab grown diamonds cost 60 to 75 percent less than natural diamonds of the same grade. This means a 1ct lab grown diamond solitaire necklace in 18K gold is accessible at a price that a natural diamond equivalent is not.

Price Ranges in This Collection

•     Under Rs.20,000: 0.1ct to 0.25ct pendant. Best for daily wear, gifting, minimalist styles.

•     Rs.20,000 to Rs.50,000: 0.25ct to 0.7ct pendant or chain. Best for anniversaries, birthdays, occasion wear.

•     Rs.50,000 to Rs.1 Lakh: 0.7ct to 1.5ct, tennis or set. Best for weddings, engagement gifts, diamond sets.

•     Above Rs.1 Lakh: 1.5ct and above, multi-piece sets. Best for statement necklaces, bridal sets, luxury gifts.

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 necklace 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 for in-person consultations

•     Custom and made-to-order pieces available