Julius Klein Group

Name

Julius Klein Group

Legal name

JKG Julius Klein Group

Website

https://juliusklein.com

Company type

Private

Founded year

1948

Operating status

Operating

Headcount range

11–50 employees

Ownership category

akta.pro rank

Product category

Diamond and Jewelry Manufacturing

NAICS

Cut Stone and Stone Product Manufacturing (327991)

SIC

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

akta.pro primary industry

Diamond Cutting & Polishing (Manufacturing) (CRAKAJAA)

akta.pro secondary industries

Polished Diamond Trading & Brokerage (CRAKAJAD), Fine Jewelry Manufacturing & Atelier Production (CRAKAAAK), Fine Jewelry Wholesale & Trading (CRAKAAAL)

Keywords

• Wholesale diamonds
• Natural diamonds
• Fancy colored diamonds
• High jewelry manufacturing
• Custom diamond cutting

Headquarters

HQ city

New York

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Wholesale Diamond Sales: B2B wholesale of natural diamonds to independent retailers and jewelry houses. Specializes in 2+ carat diamonds, fancy colored diamonds, and unique cuts.
2. Custom Jewelry Manufacturing: Design and manufacturing of high jewelry pieces for retail partners, working with their design teams to create one-of-a-kind pieces

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels8 records

Core offering

Julius Klein Group manufactures and wholesales loose natural diamonds (white and fancy colored, with specialty in 2+ carat stones) and high jewelry pieces to independent retailers, major jewelry houses, and jewelry designers worldwide. The company operates the largest polishing facility in the Western Hemisphere, uses proprietary Synova DCS 300 laser cutting technology, and offers a bespoke custom design service (Natural Wonders) for one-of-a-kind pieces.

Product overview

Julius Klein Group is a multi-generational diamond company established in 1948, operating as a B2B supplier of natural diamonds and jewelry. The company offers loose natural diamonds (white and colored fancy diamonds), finished jewelry across categories (bracelets, earrings, necklaces, rings), and high jewelry pieces. The product portfolio includes Natural Diamonds, Natural Colored Diamonds, High Jewelry collections, and various jewelry categories, complemented by a custom design service called Natural Wonders. The company serves as a supplier to major jewelry houses, independent retailers, and private jewelers, operating B2B showrooms in New York, Tel Aviv, and Hong Kong. They have one of the largest inventories of certified white and fancy-colored diamonds globally.

Differentiator

Problem solved

Functional benefit

Products and services

• Natural Diamonds Loose natural white diamonds in various cuts (radiant, emerald, round brilliant, cushion, heart, Asscher, oval, pear, marquise) and carat weights, with specialty in 2+ carat stones. Supplied to independent retailers and major jewelry houses through B2B wholesale channels.
• Natural Colored Diamonds Rare natural fancy colored diamonds in yellow, pink, blue, purple, red, and orange varieties. Features rare specimens such as the 7.34-carat Fancy Vivid Purple Royal Purple Heart Diamond. Supplied to high-end jewelers and luxury houses.
• High Jewelry Finished high jewelry pieces including bracelets, earrings, necklaces, rings, and other designs, often featuring cluster settings and elaborate diamond configurations. Includes bespoke one-of-a-kind creations for major jewelry houses and exclusive designer collaborations.
• Natural Wonders Custom Design Service Bespoke custom jewelry design service that collaborates with retail partners' design teams and clients to create one-of-a-kind pieces, from initial concept and vision exploration through to final production by skilled artisans and master cutters.

Quantifiable outcome

• 80 percent of diamond finishing done in the United States at the largest polishing facility in the Western Hemisphere
• +1 more outcomes

Named customers4 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

Eleven partnerships are on record, tiered minor and core.

• Bike4Chai / Chai LifelineminorOthers · 20 August 2024JKD has supported Bike4Chai, an annual cycling event benefiting Chai Lifeline that supports families dealing with serious illnesses. Mark Klein is a board member and has raised $156,207.17 since 2018, including $29,000 in 2024 alone.
• Women's Jewelry Association (WJA)coreStrategic or Co-development Partner · 21 June 2024Five-year partnership to offer the Ella Klein Internship to WJA members. Named for Julius Klein's matriarch Ella Klein, the internship provides hands-on jewelry industry experience. Mark Klein announced the partnership at WJA's Generating Community Impact Breakfast during JCK Las Vegas.
• American Gem Society (AGS)coreStrategic or Co-development Partner · 6 June 2024Julius Klein Diamonds welcomed AGS as a new partner in its internship program in 2024. The program offers AGS members hands-on experience in diamonds, gemology, jewelry manufacturing and design. Katherine Bodoh, CEO of AGS, noted that internships provide unique opportunities for members to gain insights into different aspects of the industry.
• Hearts on FireminorGTM or Marketing Partner · 30 October 2023Hearts on Fire joined Julius Klein as a premiere sponsor of the Diamonds Do Good 'Real People | Real Impact' campaign screening event.
• Gemological Institute of America (GIA)coreStrategic or Co-development Partner · 24 March 2023JKD partners with GIA for its Summer Internship Program, providing GIA students with practical hands-on experience in diamond evaluation and sales. The program was launched at the GIA Career Fair and has been renewed multiple times, providing aspiring industry professionals with real-world experience.
• ForevermarkminorStrategic or Co-development PartnerForevermark's Exceptional Diamond Collection featured diamonds sourced and cut by Julius Klein. Due to strict quality requirements, only the finest diamonds are chosen for their Manhattan diamond production center. The partnership was featured in Rapaport Magazine.
• Diamond Trading CompanycoreStrategic or Co-development PartnerJKD has aligned with the Diamond Trading Company's Best Practice Principles to ensure total integrity throughout the entire diamond pipeline from sourcing of rough stones to manufacturing, processing, marketing, and distribution of polished diamonds.
• World Diamond CouncilcoreStrategic or Co-development PartnerJKD is a member of the World Diamond Council, supporting the organization's mission to prevent conflict diamonds from entering the legitimate trade.
• Diamonds Do Good (DDG)coreGTM or Marketing PartnerJKD has been lead sponsor of DDG events including the 'Real People | Real Impact' campaign screening. Mark Klein serves as a DDG Board member. The partnership emphasizes ethical practices and positive impact on diamond-producing communities.
• GilbertminorImplementation/ SI/ Consulting PartnerJKD partnered with Gilbert for the construction of its new B2B showroom in Manhattan, sharing a vision of creating a luxurious and elevated experience for retail partners using sustainable materials and state-of-the-art technology.
• JKD-Dinamo TrustcoreStrategic or Co-development PartnerSocial outreach partnership between Julius Klein Group and Dinamo Diamonds focused on community development in Namibia. Has donated N$50,000 to expand primary schools in the Ohangwena Region of Namibia.

Scale indicators5 records

Recent moves8 records

Expansion highlights4 records

Direct peers

• De Beers Group: De Beers is the world's most iconic diamond producer and trader with vertically integrated mining, cutting, and grading; it competes with JKD for polished diamond allocation to major jewelry houses and sets industry pricing benchmarks through its DTC/Best Practice Principles, directly overlapping JKD's B2B polished diamond model.
• Alrosa: Alrosa is one of the world's largest rough diamond miners with significant in-house cutting and polishing operations that supply global wholesalers and jewelry houses; comparable to JKD as both upstream rough sourcer and downstream polished supplier to B2B channels.
• Leo Schachter Diamonds: Leo Schachter is a multi-generational global diamond manufacturer with cutting operations and proprietary cutting technology; comparable to JKD as a vertically integrated B2B supplier of polished stones, especially larger and unusual cuts, to major retailers.
• Rosy Blue: Rosy Blue is a global diamond manufacturing and trading group with offices across major diamond centers; comparable to JKD in cutting and wholesale B2B distribution of polished diamonds to retailers and jewelry brands worldwide.
• Graff: Graff is a vertically integrated high-jewelry house known for exceptional diamonds (often in-house cut) and luxury jewelry; directly comparable to JKD's high-jewelry manufacturing arm and its specialization in large and fancy-colored stones.
• Kiran Gems: Kiran Gems is one of the world's largest polished diamond manufacturers and exporters with global B2B reach; directly comparable to JKD's core wholesale/manufacturing model with similar scale ambitions but at a more broad-market price tier than JKD's specialty focus.
• Diacore: Diacore is a South African high-end diamond cutter and manufacturer specializing in exceptional and fancy-colored stones for luxury houses; closely mirrors JKD's niche in rare, large, and colored diamonds supplied B2B to marquee jewelers.

Broad incumbents

• Blue Nile (Signet Jewelers): Blue Nile is an online diamond and fine jewelry retailer under Signet Jewelers; comparable as a customer/competitor at the polished wholesale-to-retail interface, though it operates at a broader, more accessible price point and not JKD's luxury B2B niche.
• Tiffany & Co. (LVMH): Tiffany & Co., now within LVMH, is a global luxury diamond jewelry brand and bulk buyer of polished diamonds; comparable to JKD as both a luxury jewelry manufacturing peer and as a potential customer/channel for JKD's B2B polished output, though far larger and consumer-facing.
• Harry Winston: Harry Winston (within the Swatch Group) is a high-jewelry maison using rare large and fancy-colored diamonds; while a customer-source of JKD, it is also a benchmark comparable in the high-jewelry manufacturing and retail segment operating more broadly across finished jewelry.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Instagraminstagram.com/juliuskleindiamonds
• LinkedInlinkedin.com/company/julius-klein-group

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries2 records

Funding overview

Funding rounds

Investors

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

M&A

Investments

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

Frequently asked questions about Julius Klein Group