Jewelex Group

What Jewelex Group does

Jewelex Group is a privately held, vertically integrated diamond and jewelry manufacturer and distributor founded in 1966 and headquartered in Mumbai, India. The company operates two core divisions: a Diamond Division that sources ethically certified rough and polished diamonds (1 pointer to 2 carats, VVS to I2 clarity, GIA and IGI certified) as a De Beers Diamond Trading Company Sightholder for over 50 years, and a Jewelry Division that manufactures finished pieces across a 57,000 sq.ft. six-unit facility and a 140,000 sq.ft. product development floor staffed by 300-350 R&D specialists. Subsidiary Zenstar Jewellery LLP operates as a parallel RJC-compliant manufacturing entity within the group. Manufacturing capabilities span CAD/CAM, 3D printing, laser-cutting, CNC machining, advanced casting, and AI-augmented design exploration, supported by a 240,000 sq.ft. processing facility and a workforce of approximately 4,000 craftspeople and technicians.

Jewelex serves B2B customers including leading jewelry brands, diamond traders, and retailers through wholly-owned marketing affiliates and regional entities in nine cities across six core markets: Mumbai (headquarters and Bharat Diamond Bourse), Antwerp (1974), New York (1978), Tokyo (1988), Hong Kong (1993), Shanghai (2003), Sydney (2005), Tel Aviv (2011), and Dubai (2012). Go-to-market is enterprise field sales with dedicated client representatives, supplemented by active participation in major industry trade shows (Leading Show in Irvine, RJO Show in Lexington, IIJS Bharat Premiere in Mumbai, Vicenza Show in Italy) and a unified 'Jewelex' brand identity consolidated in 2004.

The business model is B2B and quote-based with one-time transactional revenues across diamond trading and jewelry manufacturing. The company has invested in ESG positioning (carbon-neutral jewelry units since 2021, Kimberley Process and RJC compliance, 85% of supply from low-risk sources per OECD guidelines) and in August 2024 launched the 'Rare' Luxury Smart Ring in collaboration with Ultrahuman, marking entry into the wearable smart-jewelry category. The company is founder-owned (CEO Nilesh Kothari), operates without external institutional capital, and holds No.1 SEEPZ exporter recognition for three consecutive years, Great Place to Work 2025 certification, and Platinum Guild awards.

Name

Jewelex Group

Legal name

Jewelex India Private Limited

Website

https://jewelexgroup.com

Company type

Private

Founded year

1966

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Jewelex Group is a privately held, vertically integrated diamond and jewelry manufacturer founded in 1966 in Mumbai, India. It serves B2B customers, including leading jewelry brands and diamond traders globally, via nine offices across six markets under a unified corporate identity, with subsidiary Zenstar Jewellery LLP.

Ownership category

akta.pro rank

Product category

Diamond and Jewelry Manufacturing

NAICS

Jewelry and Silverware Manufacturing (33991), Jewelry and Silverware Manufacturing (339910), Jewelry, Watch, Precious Stone, and Precious Metal Merchant Wholesalers (42394)

SIC

Jewelry, Precious Metal (3911), Jewelry, Silverware & Plated Ware (3910), Wholesale-Jewelry, Watches, Precious Stones & Metals (5094)

akta.pro primary industry

Fine Jewelry Manufacturing (Precious Metals & Gem-Set) (CRAKAIAA)

akta.pro secondary industries

Bridal & Engagement Jewelry Manufacturing (CRAKAIAC), Diamond Cutting & Polishing (Manufacturing) (CRAKAJAA), Stone Setting & Gem Mounting Services (CRAKAIAG)

Keywords

• Diamond manufacturing
• Jewelry manufacturing
• Polished diamond trading
• Ethically sourced diamonds
• Custom jewelry design

Headquarters

HQ city

Mumbai

HQ country

India

HQ region

Asia

Offices5 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Supply Chain, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Diamond Manufacturing and Trading: Vertically integrated diamond manufacturing and trading operations including rough diamond sourcing and polished diamond production. De Beers Sightholder for over 50 years with ethically sourced rough diamonds available in unique shapes and sizes. Polished diamonds range from 1 pointer to 2 carats, graded VVS to I2 for clarity.
2. Jewelry Manufacturing: Jewelry manufacturing with sprawling facility of approximately 57,000 square feet divided into 6 dedicated units. Capabilities include casting, CNC machining, and advanced technologies for large-scale production runs with exceptional efficiency.

Go-to-market motion3 records

Distribution channels2 records

Marketing channels4 records

Core offering

Jewelex Group is a vertically integrated diamond and jewelry manufacturer. Its Diamond Division supplies ethically sourced rough and polished diamonds (1 pointer to 2 carats, VVS to I2 clarity, GIA/IGI certified) under its 50+ year De Beers Sightholder relationship. Its Jewelry Division produces finished jewelry using CAD/CAM, 3D printing, CNC machining, and advanced casting across a 57,000 sq.ft. facility with six dedicated units and a 7-stage quality control process. The company serves jewelry brands, retailers, and diamond traders globally through direct sales offices in five countries and major trade show participation.

Product overview

Jewelex Group operates as a vertically integrated diamond and jewelry company with two core divisions: Diamond Division and Jewelry Division, supported by subsidiary Zenstar Jewellery LLP. The Diamond Division offers ethically sourced rough and polished diamonds (1 pointer to 2 carats, GIA/IGI certified) as a De Beers Sightholder for over 50 years. The Jewelry Division provides manufacturing services using casting, CNC machining, and advanced technologies across a 57,000 sq.ft. facility with 6 dedicated units. Zenstar serves as the group's sub-brand focused on RJC-compliant responsible jewelry production.

Differentiator

Problem solved

Functional benefit

Products and services

• Diamond Division Ethically sourced rough and polished diamonds supplied to diamond traders, jewelry brands, and retailers. Rough diamonds are available in unique shapes and sizes; polished diamonds range from 1 pointer to 2 carats, graded VVS to I2 for clarity, and are certified by GIA and IGI. Backed by 50+ year De Beers Sightholder status with full traceability and Kimberley Process compliance.
• Jewelry Division Full-service jewelry manufacturing for leading jewelry brands and retailers, delivered from a 57,000 sq.ft. facility divided into six dedicated units. Capabilities include casting, CNC machining, and advanced manufacturing technologies, with a rigorous 7-stage quality control process covering waxing, wax setting, casting, assembly, stone setting, polishing, and final quality check. Uses CAD/CAM, 3D printing, and laser-cut technologies to deliver personalized, high-quality jewelry at scale.
• Zenstar Jewellery LLP Vertically integrated diamond and jewelry manufacturing and distribution subsidiary of Jewelex Group, operating as a member of the Responsible Jewellery Council. Offers wide product lines, strong global presence, and deep manufacturing expertise under a distinct sub-brand identity.

Quantifiable outcome

• Carbon neutral jewelry units since 2021
• +3 more outcomes

Named customers2 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Feature7 records

Partnerships

Eight partnerships are on record, tiered core and minor.

• De BeerscoreStrategic or Co-development Partner50+ year relationship as De Beers Diamond Trading Company Sightholder. Being a Sightholder means access to the world's finest diamonds with full traceability and ethical sourcing guarantees through the Kimberley Process.
• Responsible Jewellery Council (RJC)coreStrategic or Co-development PartnerMember of the Responsible Jewellery Council, committed to responsible business practices across the jewelry supply chain. Recently completed RJC COP 2019 Re-Certification audit.
• Tata Memorial CentreminorOthersCSR partnership supporting cancer care - ACTREC Hematolymphoid Building under construction with 72 bedded Day Care facilities being sponsored at Kharghar Unit's OPD Block serving over 1,200 cancer patients daily.
• HKM Charitable FoundationminorOthersCSR partnership serving approximately 1,40,000 free meals annually at Cooper Municipal Hospital in Mumbai for patients' relatives, and served 5,00,000+ meals under 'Akshaya Chaitanya' mass feeding program.
• Navasrushti International TrustminorOthersCSR partnership for vocational skills projects benefiting approximately 100 youth annually.
• Sanjivani Health & Relief CommitteeminorOthersJewelex Group Ahmedabad fully dedicated factory facility to this NGO, converting it into a healthcare center for the local community.
• Eklavya Model Residential SchoolminorOthersPrimary donor for 900 students near Vadodara in Gujarat, supporting education for tribal students.
• VSSM (Vikash Seva Sansthan)minorOthersEnvironmental CSR partnership - sponsored planting of over 50,000 saplings over 11 different sites in Banaskantha, Gujarat over 5 years.

Scale indicators12 records

Recent moves14 records

Expansion highlights5 records

Direct peers

• Suashish Diamonds: Indian De Beers sightholder and diamond manufacturer with vertically integrated operations spanning rough sourcing to polished supply. Comparable business model as a privately held Indian sightholder serving B2B jewelry customers.
• Rosy Blue: India-headquartered, family-owned vertically integrated diamond manufacturer and De Beers sightholder with global distribution across key jewelry markets. Comparable business model as a privately held sightholder serving global B2B jewelry brands with rough-to-polished operations.
• KGK Group: Vertically integrated diamond mining-to-jewelry manufacturer with global offices in Antwerp, Hong Kong, Dubai, New York and India. Highly comparable as a family-owned Indian conglomerate offering rough diamonds, polished diamonds, and finished jewelry to global B2B customers.
• D. Navin & Co. (Diya Diamonds): Indian De Beers sightholder and polished diamond manufacturer with global marketing offices, supplying certified diamonds to international jewelry brands and wholesalers. Directly comparable as a sightholder-led B2B diamond supplier with multi-country presence.
• Venus Jewel: Mumbai-headquartered De Beers sightholder and diamond manufacturer producing certified polished diamonds for global jewelry brands. Comparable in sightholder-driven supply, B2B focus, and reliance on Indian manufacturing scale.
• Leo Schachter Diamonds: Long-standing De Beers sightholder and global diamond manufacturer with manufacturing in India, Israel, and New York. Comparable as a sightholder-led, vertically integrated supplier of polished diamonds and jewelry to leading global brands.
• Hari Krishna Exports: One of the largest Indian diamond manufacturers and De Beers DTC sightholders, headquartered in Surat. Directly comparable vertically integrated diamond and jewelry manufacturer serving global B2B jewelry brand customers, with overlapping sightholder economics and export-zone footprint.

Broad incumbents

• Titan Company (Tanishq): India's largest branded jewelry retailer and manufacturer (Tata Group), operating a vertically integrated jewelry business across diamond and gold categories. Overlaps with Jewelex on Indian jewelry manufacturing scale but is significantly larger and consumer-brand-led rather than B2B-focused.

Regional players

• Gitanjali Gems: India-based vertically integrated diamond and jewelry company with global sourcing and retail brand portfolio (Gili, Nakshatra). Comparable on Indian diamond-jewelry integration but with a stronger consumer-brand tilt and different geographic emphasis.
• Malabar Gold & Diamonds: India-headquartered vertically integrated gold and diamond jewelry retailer with global showroom presence. Comparable on Indian diamond-jewelry scale and supply-chain integration, but operates a retail-led model rather than B2B manufacturing focus.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/jewelexgroup
• Instagraminstagram.com/jewelexgroup

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries6 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments1 record

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Jewelex Group