Diamond Supplier in Mumbai
Wholesale Natural & Lab Grown Loose Diamonds, Sourced and Supplied Direct from Bharat Diamond Bourse, BKC
Mann Gems LLP is a certified diamond supplier in Mumbai, trading natural and lab grown diamonds for jewelry manufacturers, wholesalers, and retailers across the city. Our office sits inside Bharat Diamond Bourse in BKC, so Zaveri Bazaar, Opera House, Andheri, Malad, Borivali, and Thane all deal with us at source, with no inter-city courier delay. Every stone carries GIA or IGI certification, backed by 15+ years of trading from the same building, across natural diamonds, lab grown diamonds, and all eleven commercially traded shapes.
WHOLESALE DIAMOND SUPPLIER IN MUMBAI
Diamond Supplier in Mumbai: Natural & Lab Grown Diamonds for Local Buyers
We’re Mann Gems LLP, a certified diamond supplier in Mumbai that jewelry manufacturers deal with directly, in person, at Bharat Diamond Bourse. We supply loose natural diamonds and lab grown diamonds, in all eleven shapes, from melee to solitaire sizes. Because we’re already inside BDB, a buyer from Zaveri Bazaar or Opera House can walk in and check a parcel in person the same day they call, and a manufacturer further out in Andheri, Malad, or Borivali gets same-day or next-day dispatch instead of the multi-day transit that suppliers based outside Mumbai can’t avoid.
Every quote we give on wholesale diamonds in Mumbai is checked against where the market is that day, and every certified diamond is graded under GIA or IGI before it leaves our office. Tell us the carat range, shape mix, and certification tier you need and we’ll work from there. If it’s your first time sourcing directly from BDB, we’ll walk you through pricing and realistic lead times before you commit to anything. If you’re already a regular manufacturer in the city, you get first pick when stock is tight, and the same people handle sourcing and dispatch here, so what reaches your workshop matches what you were quoted, every time.
THE MUMBAI DIAMOND TRADE
Why Mumbai Is Where India's Diamond Trade Actually Happens
Bharat Diamond Bourse in BKC is the largest diamond exchange in the world, home to thousands of member offices and the point through which the vast majority of India’s polished diamond trade passes before it reaches a manufacturer or export buyer. Zaveri Bazaar, a short drive away, has been Mumbai’s jewellery market for generations, and Opera House and Charni Road have their own long history as a gemstone trading belt. When we say we supply diamonds in Mumbai, we mean we’re inside the same complex where the market price gets set every day, not reading it off a report from somewhere else.
That matters for a manufacturer because it removes a layer between you and the stone. Pricing reflects the same day’s market, stock can be checked in person before it’s confirmed, and there’s no waiting on a supplier in another city to get back to their own source before they can quote you.
Diamond Quality Standards
Every stone we supply, natural or lab grown, is checked against the 4Cs before it goes out to a Mumbai buyer:
- Cut: how well the diamond handles light, which has the biggest effect on how it actually looks in the hand.
- Color: the range from colorless through faint yellow, with colorless stones commanding the higher price.
- Clarity: what’s visible inside and on the surface of the stone; fewer inclusions means a rarer, more valuable diamond.
- Carat: the raw weight of the stone, where price increases faster than weight as size goes up.
We also check finish and symmetry on every parcel before it ships, so what you’re quoted is what actually arrives at your Mumbai workshop.
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What We Supply: Natural & Lab Grown Diamonds in Mumbai
We supply both natural diamonds and lab grown diamonds to jewelry manufacturers, wholesalers, and retailers across Mumbai, each one independently certified before it leaves our office. Here’s what’s available:
Natural Diamonds: Mined From the Earth, Sourced Right at the Bourse
Natural diamonds take billions of years to form underground, and every stone we sell is graded on cut, color, clarity, and carat before it’s certified. For bridal and heirloom focused manufacturers working out of Zaveri Bazaar and Opera House, that origin story is still what the end customer is paying for.
Available to buyers in Mumbai:
Natural diamonds remain the preferred choice for China jewellery manufacturers producing bridal, investment, and heirloom-grade jewellery, where provenance and long-term value retention matter most to end customers.
Lab Grown Diamond Supplier in Mumbai
Lab grown diamonds are chemically and optically identical to natural stones. The only real difference is how they’re formed, using HPHT or CVD technology in a lab setting instead of underground pressure over millions of years. Demand for certified lab grown stock has picked up fast among Mumbai manufacturers, mainly because it lets them hit a lower price point without giving up on grading standards. We supply:
- Round and fancy shape lab grown diamonds
- Certified lab grown diamonds with full grading documentation
- Rose cut and mix cut fancy lab grown diamonds
- Loupe clean and white lab grown diamond categories
- Solitaire grade certified lab grown diamonds
Loose Diamond Supplier in Mumbai
What we supply is unset, loose diamonds, nothing more. Manufacturers, designers, and wholesalers across Mumbai take it from there and set it under their own brand. We stay out of the finished jewelry side of the business entirely; we just supply what goes into it.
Diamond Shapes Available in Mumbai
We cut and select parcels across all eleven commercially traded diamond shapes that manufacturers in Mumbai order for bridal jewelry, engagement rings, and fashion pieces.
ROUND
PRINCESS
CUSHION
OVAL
EMERALD
HEART
PEAR
MARQUISE
ASSCHER
RADIANT
ROSE
Certified Diamond Supply & Wholesale Services in Mumbai
Diamond sizes, certified supply, custom sourcing, wholesale terms, and secure delivery for jewelry businesses across Mumbai.
Stock ranges from melee sizes for pavé and accent work up to solitaire grade centre stones for bridal pieces. Carat availability is confirmed against live inventory at the time of enquiry, since stock and pricing shift daily on the BDB trading floor.
Every certified stone we supply carries a grading report with an independently verifiable report number. We supply diamonds certified by GIA (Gemological Institute of America) and IGI (International Gemological Institute), across both natural and lab grown categories.
- GIA (Gemological Institute of America): the industry benchmark for strict, consistent grading.
- IGI (International Gemological Institute): a leading lab for both natural and lab grown certification, widely used across the Mumbai trade.
Buyers in Mumbai with a specific production run in mind can request:
- Custom carat and size ranges matched to a manufacturing schedule
- A specific shape mix, whether round only, fancy only, or a blend
- Certification tier by lab (GIA or IGI) to match your market positioning
- Natural, lab grown, or a combined natural and lab grown parcel
Every custom request is checked against current stock and certification availability before we confirm it, so the order that’s placed is the order that ships.
We supply jewelry manufacturers, wholesalers, and retailers right across the city, from established Zaveri Bazaar and Opera House trading houses to smaller manufacturing units in Andheri, Malad, Borivali, and Thane sourcing directly for the first time.
Bulk is the standard here, not the exception. We work in carat ranges, shape mixes, and certification tiers rather than one-off retail sales, and order size is set by what a manufacturer actually needs rather than a fixed minimum. Several of our Mumbai buyers start with a trial parcel before moving to a regular running order.
Every shipment within Mumbai is packaged to protect the stones in transit and sent through insured local courier with tracking, or handed over directly at our BDB office for buyers who prefer to collect. GST invoicing and HSN classification are provided with each shipment, and certification documentation travels with the parcel so it can be checked against every stone on arrival. We include a standard conflict-free sourcing statement with each shipment, in line with Kimberley Process requirements.
Natural diamonds and lab grown diamonds fall under separate HSN classifications for GST purposes in India, and GJEPC guidance requires that invoices clearly state whether a stone is natural or lab grown. Every lab grown diamond we supply is certified and billed as lab grown from the start, so that classification is already built into your paperwork before the stone reaches you.
Area | Known For | We Supply |
Bandra Kurla Complex (BKC) | Home of Bharat Diamond Bourse, our own office and trading floor | Natural Diamonds, Lab Grown, Loose Diamonds |
Zaveri Bazaar | Mumbai’s oldest and busiest jewellery market | Natural Diamonds, Lab Grown, Loose Diamonds |
Opera House & Charni Road | Long standing diamond and gemstone trading belt | Natural Diamonds, Lab Grown, Loose Diamonds |
Andheri | Jewelry manufacturing and export units | Natural Diamonds, Lab Grown, Loose Diamonds |
Malad & SEEPZ | Export oriented jewelry manufacturing zone | Natural Diamonds, Lab Grown, Loose Diamonds |
Borivali, Dadar & Thane | Growing base of independent jewelry manufacturers | Natural Diamonds, Lab Grown, Loose Diamonds |
- Melee: small diamonds, generally under 0.18 carat, used for pavé and accent settings.
- Solitaire: a larger single stone set as the centre point of a ring or pendant.
- Loupe Clean (LC): a stone with no inclusions visible under 10x magnification, a common trade grading shorthand.
- Rose Cut: a flat-backed cut with a faceted dome top, popular in vintage-style and fashion jewelry.
- Mix Cut: a parcel containing a mix of shapes rather than a single uniform shape.
- Parcel: a batch of diamonds grouped by shape, size, and quality for wholesale sale.
- HPHT / CVD: the two methods used to grow lab grown diamonds, High Pressure High Temperature and Chemical Vapour Deposition.
Why Choose Mann Gems LLP
Manufacturers and wholesalers across Mumbai work with Mann Gems LLP, a certified diamond supplier in Mumbai, for the same reason buyers everywhere do: a direct, certified supply chain with no reseller markup sitting between them and the stone, plus the advantage of being able to walk into our BDB office in person.
- 15+ years of experience in the natural and lab grown diamond trade, established in 2005, trading out of Bharat Diamond Bourse the entire time.
- GIA and IGI certified diamonds on every stone, independently graded before it ships.
- Trusted by 1,000+ clients globally, including manufacturers based right here in Mumbai, built on repeat orders rather than one-off sales.
- Ethically sourced diamonds aligned with Kimberley Process standards.
- Same-city advantage: no inter-state courier delay, in-person viewing by appointment, and same-day dispatch for local orders.
Send Your Diamond
Requirements
Our sourcing team responds within 4 business hours with a curated certified stone list and pricing. All inquiries are strictly confidential.
Natural Diamonds vs Lab Grown Diamonds: Quick Comparison
| Factor | Natural Diamonds | Lab Grown Diamonds |
|---|---|---|
| Origin | Formed naturally in the earth’s mantle over billions of years | Created in a controlled lab using HPHT or CVD technology |
| Composition | Pure carbon crystal structure | Identical carbon crystal structure |
| Certification | GIA, IGI | GIA, IGI, GCAL |
| Typical Price Point | Higher, driven by rarity | Generally more accessible per carat |
| Resale Value | Higher and more stable long-term | Lower and more variable |
| Common UAE Buyer | Bridal, heirloom, investment-focused retailers | Fashion, volume, value-focused retail chains |
Find Your Perfect Diamond Parcel
Talk to our Mumbai desk today, in person at BDB or over WhatsApp. We get back to you within one business hour.
Frequently Asked Questions: Diamond Suppliers in Mumbai
Mann Gems LLP supplies GIA and IGI certified natural and lab grown loose diamonds directly from our own office at Bharat Diamond Bourse, so Mumbai buyers deal with us at source instead of through a chain of local resellers.
We recommend booking an appointment so we can have the right parcels pulled and ready for you, but we’re always happy to accommodate buyers who need to view stock on short notice.
Yes. A large part of our regular business is with jewellers and traders working out of Zaveri Bazaar and Opera House, and being in BKC keeps turnaround fast for both.
There’s no fixed minimum. We supply single solitaires for custom orders and larger parcels for manufacturers running production, whether you’re in South Mumbai or the suburbs.
Most in-city orders are dispatched the same day or next day once confirmed, since there’s no inter-city transit involved.
Yes. Natural diamonds and lab grown diamonds are classified under separate HSN codes for GST purposes, and every invoice we issue clearly states which category the stone falls under.
Yes, in round, fancy shape, rose cut, mix cut, and solitaire inventory, across both natural and CVD or HPHT lab grown categories.
Yes. You can view parcels in person at our BDB office, or we can send HD video, 360 degree views, and certificate scans over WhatsApp or email, with a live video call if you’d prefer one.
We follow standard BDB trading hours, Monday to Saturday, and stay closed on Sundays and exchange holidays. Appointments are preferred but we accommodate walk-ins where possible.
Shape, carat range, certification lab (GIA or IGI), and whether you need natural, lab grown, or a mix. The more specific the brief, the faster we can match it against live stock.
Yes, for established Mumbai manufacturers with a track record of orders, we review running account terms on a case by case basis.
Yes, a lot of our regular Mumbai buyers started with a single trial parcel to check quality and service before moving to a running order.