You may already know that India is a big name in the diamond business. But most people do not know that in FY 2025-26, India’s polished lab-grown diamond exports crossed 18.8 million carats and officially overtook natural diamond exports, which were sitting at 16 lakh carats. 

First time this has ever happened. So if you are a retailer, wholesaler, or brand owner who wants to work with the right lab-grown diamond jewellery manufacturers in India, the supply chain here is mature, the pricing is competitive, and the manufacturing capacity is real.

What Is a Lab-Grown Diamond Jewellery Manufacturer?

A manufacturer takes care of the full process: sourcing diamond rough, designing the jewellery, casting it in gold, setting the stones, running quality checks, and dispatching finished pieces to B2B buyers. They are the first link in the supply chain, sitting before everyone else.

Now many people mix up manufacturers, suppliers, and dealers, so let us break this down.

• A manufacturer has in-house production. They control the design, casting, stone setting, and finishing themselves. 
• A supplier may or may not have their own factory. Many of them buy finished jewellery from manufacturers and sell it to retailers with their own margin. 
• A dealer works mainly in loose diamonds or certified diamonds and stays between the lab and the jewellery factory.

Now, why does any of this matter for you? 

When you buy directly from diamond jewellery manufacturers, you don’t deal with middlemen and their costs. You also get real say over design, production timelines, MOQ, and how your collection is customised.

How India Became the Manufacturing Hub

Surat did not become a lab-grown diamond hub overnight. The city was already the largest natural diamond cutting and polishing centre in the world. Skilled cutters, polishing machines, gemological training, export channels, all of it was already there when lab-grown production started growing. Surat just absorbed the new demand without rebuilding anything from scratch. Mumbai joined and together the two cities now handle close to 98 percent of India’s lab-grown diamond production.

The market numbers from Future Market Insights tell the rest of the story. USD 453.7 million in 2026, projected at USD 1,798.6 million by 2036, growing at 14.8 percent CAGR. CVD is the dominant method at 58.7 percent of output. HPHT handles most stones below 1.50 carats, with rough imported from China and finished in Surat.

For anyone buying from Indian wholesale jewelry manufacturers, there is a compliance requirement in place since January 2026. The Bureau of Indian Standards enforced IS 19469:2025 and every manufacturer and retailer must label products as laboratory-grown diamond or laboratory-created diamond. Cultured diamond is no longer an accepted term. Confirm your supplier is following this before any order goes through.

How to Choose the Right Manufacturer

Check Certification First

The certifications that carry weight for lab-grown diamond jewellery in India are IGI, GIA, and SGL. Any serious diamond jewellery manufacturer will provide certified stones with report numbers you can verify independently on the IGI website. BIS hallmarking on the gold is mandatory in India. 

Understand CVD vs HPHT

Some manufacturers work only with CVD, some only with HPHT. If you need to serve both the bridal segment and everyday retail, working with a manufacturer who handles both gives you more flexibility in how you build your collection. CVD is generally preferred for retail lines because colour grading is consistent across batches. HPHT tends to suit higher-value bridal pieces.

Ask About Bulk and Repeat Orders

Many manufacturers can do a clean sample order of 10 or 20 pieces. The real question is whether the 100-piece batch that follows has the same finishing quality. Ask references from existing B2B clients specifically about repeat orders, because that is where the gap shows up. Also ask about in-house CAD design. If they have it, you can develop custom collections without coordinating between a separate design studio and the factory.

Confirm White-Label Support

If you are building your own jewellery brand, ask upfront whether they offer white-label or OEM manufacturing. You want your brand identity on the piece, the packaging, and the certificate.

Comparison Table: Lab-Grown Diamond Jewellery Categories

Jewellery Type	Best For	Diamond Type	Approx. Price Range
Diamond Ring for Women	Bridal, Engagement	CVD or HPHT	₹25,000 to ₹2,00,000+
Diamond Earrings for Women	Gifting, Everyday Retail	CVD	₹8,000 to ₹60,000+
Womens Diamond Necklace	Bridal, Statement, Export	CVD or HPHT	₹40,000 to ₹3,00,000+
Diamond Pendant Necklace for Women	Retail, Online, Gifting	CVD	₹10,000 to ₹80,000+
Diamond Bracelet for Women	Fashion, Tennis, Gifting	CVD	₹15,000 to ₹1,50,000+
Mens Diamond Jewellery	Corporate Gifting, Retail	CVD or Natural	₹12,000 to ₹1,20,000+
Mens Jewellery Collection	Wholesale Brand Building	CVD	MOQ-based B2B pricing

Price ranges vary based on gold weight in 14KT or 18KT, diamond carat, clarity, colour grade, and the manufacturer.

Common Mistakes to Avoid While Choosing a Manufacturer

Ignoring certificate verification is the most common one. Some suppliers sell uncertified lab-grown diamond jewellery in India and there is no way for you to know the actual colour, clarity, or diamond type without a report number you can check. Always ask for IGI, GIA, or SGL certification on every order.

Assuming sample quality matches bulk quality is the second one. A manufacturer may show you a hand-picked sample from a previous run. Your question should be about the 100th piece in your bulk order, not the one sitting in their display cabinet. References from existing B2B clients are the only honest answer to this question.

Trusting marketplace listings without checking is also a problem. Anyone can call themselves a manufacturer on IndiaMART. GST verification status, export registration history, and a confirmed physical factory address in Surat or Mumbai are the three things to check before you even have a pricing conversation.

Going after the lowest price without asking why. The lab-grown diamond prices have found a stable floor in 2026, so a quote that is significantly below market average almost always means lower diamond quality, reduced gold weight, or uncertified stones. Ask the manufacturer to explain the pricing before you accept it.

Aurament Wholesale: B2B Diamond Jewellery Manufacturer in Surat

Surat is where Aurament Wholesale operates and has been operating for 7 years, when the business registered as Aurament Gems and Jewels. Retailers, wholesalers, distributors, and exporters across India and in other countries buy from them as a certified diamond jewellery manufacturer and exporter. One thing wholesale buyers notice is that design and production are not split between two vendors here. 

We manufacture across the full range: 

• Diamond rings for women
• Diamond earrings for women
• Womens diamond necklaces
• Diamond pendant necklaces for women
• Diamond bracelets for women

The men’s jewellery collection runs separately with its own men’s diamond jewellery range across rings, bracelets, and titanium lab-grown pieces. Gold options are 14KT and 18KT across both ranges. Every diamond comes with IGI or SGL certification.

Brand owners sourcing for our own label can use the white-label and OEM manufacturing setup. Your branding goes on the product, the box, and the documents. CVD lab-grown, HPHT lab-grown, and natural diamond jewellery are all in production here, which means your entire catalogue can come from one place.

Talk to the Aurament Wholesale team about sampling options, pricing structure, and bulk production timelines before committing to anything.

Final Verdict

India’s lab-grown diamond manufacturing is only getting bigger and Surat is at the centre of it. The supply is here, the certifications are in place, and the export infrastructure is ready. 

What you need on your side is a manufacturing partner who can deliver the same quality on your tenth order that they gave you on the first.

FAQs: LGD Manufacturers in India

1. What is a lab-grown diamond jewellery manufacturer?

So basically these are companies who make jewellery using lab-grown diamonds. They do everything in house: design, setting, and finishing. And yes, they also support bulk orders and white-label for brands.

2. Are lab-grown diamonds real diamonds?

100% real. A lab-created diamond has the same carbon, the same hardness, and the same look as a mined one. Even gemologists cannot tell the difference without special equipment. 

3. Which is the best diamond jewellery manufacturer in India?

Surat and Mumbai are the main places to look. But it depends on what you need. If you want in-house CAD design with IGI or SGL certified diamonds, Aurament Wholesale in Surat is worth talking to.

4. How do we choose a manufacturer for bulk orders?

First thing, verify the certificate numbers yourself from IGI, GIA, or SGL. Then ask their existing customers about repeat order quality, not just samples. And always get MOQ and delivery time in writing before you say yes to anything.

5. Where can we buy wholesale diamond jewellery in India?

Surat is where most of it happens. You can directly contact manufacturers like Aurament Wholesale for wholesale rates and sampling. Just make sure GST registration, export history, and proper certification are all in place before placing a serious order.