SDC Designs

What SDC Designs does

SDC Designs, operating as SDC Jewelry Group and legally SDC Design LLC, is a privately held New York-based house of luxury jewelry brands founded in 1921. The group is organized around three core operating subsidiaries — SuperDiamond (diamond wholesaling and global diamond supply), SHR (men's jewelry design, brand building, and product development), and SDC Creations (supporting independent jewelers through two fashion and two bridal brands) — plus the wholly owned designer sub-brand Penny Preville. SDC serves four primary customer segments: fashion-forward consumers seeking modern luxury lifestyle pieces, bridal customers, men's jewelry buyers, and independent retailers, with global distribution across all four lines.

The company's product and technology stack combines traditional jewelry craftsmanship with stated digital capabilities: advanced 3D design software for precision modeling, state-of-the-art e-commerce platforms for direct customer sales, and a tech-based supply chain infrastructure providing end-to-end transparency. Service offerings include innovative manufacturing (rapid, virtual, cost-efficient production), bespoke jewelry design via an in-house creative team, brand building, and integrated experience-and-technology solutions. The firm maintains sector-specific compliance with the Kimberley Process, Responsible Jewellery Council standards, OECD reporting, and a Human Rights Policy.

The business model is a hybrid of jewelry manufacturing and wholesale distribution (one-time product sales through owned and partner brands) and brand-building professional services. Pricing is quote-based and not publicly disclosed. The company is privately held with no parent, no public listing, and no disclosed investors, owners, or leadership team in the source data, suggesting founder or family ownership. With 11-50 employees and a Fifth Avenue headquarters, SDC positions itself as a unified platform connecting diamond sourcing, branded retail, and technology-enabled jewelry production globally.

Name

SDC Designs

Legal name

SDC Design LLC

Website

https://sdcdesigns.com

Company type

Private

Founded year

1921

Operating status

Operating

Headcount range

11–50 employees

Short description

SDC Designs (SDC Jewelry Group) is a privately held New York-based luxury jewelry house, founded in 1921, operating divisions across diamond wholesale, men's jewelry, bridal and fashion fine jewelry design, manufacturing, and global brand distribution.

Ownership category

akta.pro rank

Product category

Luxury Jewelry Manufacturing & Distribution

NAICS

Jewelry and Silverware Manufacturing (33991)

SIC

Jewelry, Precious Metal (3911), Jewelry, Silverware & Plated Ware (3910), Coating, Engraving & Allied Services (3470)

akta.pro primary industry

Bespoke Jewelry Collections for Brands (Design Services) (CRAKAHAJ)

akta.pro secondary industries

Bridal & Engagement Jewelry Manufacturing (CRAKAIAC), Children’s & Men’s Jewelry Manufacturing (CRAKAIAN), Fine Jewelry Sets & Collections (Parures/Matched Sets) (CRAKAAAF), Fashion Jewelry Sets & Giftable Collections (CRAKABAL)

Keywords

• Fine jewelry design
• Jewelry manufacturing
• Diamond wholesale
• Bridal jewelry
• Men's jewelry

Headquarters

HQ city

New York

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Jewelry Manufacturing: Manufacturing of jewelry products including design, production, and distribution of fashion fine jewelry, men's jewelry, bridal, and personalized pieces.
2. Brand Building Services: Services to craft unique brand identities and enhance brand visibility through bespoke jewelry designs and consumer-centric marketing initiatives.

Distribution channels4 records

Marketing channels2 records

Core offering

SDC Designs (SDC Jewelry Group) designs, manufactures, and distributes fine and fashion jewelry through a portfolio of divisions and brands, including SuperDiamond (diamond wholesale), SHR (men's jewelry), SDC Creations (manufacturing and back-office support for independent jewelers), and the Penny Preville sub-brand (vintage-inspired fine jewelry). The firm also offers bespoke jewelry design, brand building, and infrastructure services to the jewelry trade.

Product overview

SDC Designs (SDC Jewelry Group) is a house of modern luxury and lifestyle brands specializing in jewelry manufacturing, design, and technology. The company operates as a unified platform offering both divisions and services: three core divisions (SuperDiamond for diamond wholesaling, SHR for men's jewelry and brand building, and SDC Creations for independent jewelers with fashion and bridal brands) plus sub-brand Penny Preville. Services include innovative manufacturing, bespoke jewelry design, tech-based infrastructure, brand building, and experience & technology solutions leveraging advanced 3D design software and e-commerce platforms.

Differentiator

Problem solved

Functional benefit

Brands

• SuperDiamond: Experienced diamond wholesaler recognized for expertise in offering high-quality diamonds and establishing global partnerships, making them a trusted source for exceptional stones.
• SHR
• SDC Creations
• Penny Preville

Products and services

• Penny Preville
• SuperDiamond
• SHR
• SDC Creations
• Bespoke Jewelry Design
• Brand Building Services

Named customers1 record

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Two partnerships are on record, tiered core.

• Penny PrevillecoreChannel Partner/ Reseller/ DistributorPenny Preville is an award-winning fine jewelry designer known for vintage-inspired pieces that are feminine, geometric, and intricate. SDC Designs distributes her jewelry, which brings poetic designs into modern focus. The brand is worn by celebrities including Jackie Kennedy, Jennifer Lawrence, Nicole Kidman, and Oprah Winfrey.
• SuperDiamondcoreOthersSuperDiamond is an experienced diamond wholesaler recognized for expertise in offering high-quality diamonds and establishing global partnerships. They are a trusted source for exceptional stones serving as a key supplier to SDC Jewelry Group.

Scale indicators1 record

Recent moves5 records

Expansion highlights6 records

Direct peers

• Stuller: Stuller is one of the largest US-based jewelry manufacturers and wholesalers, providing findings, finished jewelry, and bespoke services to independent jewelers and brands. Highly comparable to SDC Designs' manufacturing-plus-distribution model serving the independent-jeweler channel.
• Richline Group: Richline Group is a vertically integrated jewelry manufacturer (a Berkshire Hathaway company) spanning precious metals, findings, and finished jewelry across multiple brands. Directly comparable to SDC's multi-division manufacturing and brand portfolio structure.
• David Yurman: David Yurman is a US-based fine jewelry designer/manufacturer known for branded collections, celebrity adoption, and integrated retail. Comparable to SDC's blend of in-house design, branded collections (e.g., Penny Preville), and fashion-forward positioning.
• Kwiat: Kwiat is a New York-based heritage diamond jewelry house (founded 1907) specializing in fine jewelry and bridal. Closely comparable to SDC's NYC-based heritage, diamond-wholesale (SuperDiamond) supply chain, bridal focus, and Fifth Avenue address.

Broad incumbents

• Tiffany & Co. Tiffany & Co. is an iconic US fine jewelry brand and retailer (now part of LVMH) with deep bridal heritage. Overlaps with SDC's bridal and fine jewelry segments and its celebrity-driven brand equity, though at much larger scale and with owned retail.
• Harry Winston: Harry Winston is a luxury fine jewelry and watch brand with diamond-wholesale heritage (the "King of Diamonds"). Comparable to SDC's SuperDiamond division and its high-end bridal and fine jewelry positioning, though operating at premium luxury scale.
• Pandora: Pandora is a global mass-market jewelry brand with broad product lines spanning fashion, gifts, and personalization. Comparable to SDC's fashion jewelry and gifting/collections categories, though Pandora competes primarily through owned DTC retail rather than wholesale-to-independents.
• Swarovski: Swarovski is a global jewelry and crystal brand with fashion jewelry, bridal, and gifting collections. Comparable to SDC's fashion fine jewelry and bridal offerings as well as its multi-decade heritage and celebrity-driven brand marketing.

Emerging players

• Mejuri: Mejuri is a venture-backed DTC fine jewelry brand targeting fashion-forward consumers with everyday luxury pieces. Overlaps with SDC's primary "fashion-forward consumers" segment and Penny Preville positioning, though competing primarily through direct online channels.
• Brilliant Earth: Brilliant Earth is a digitally native fine jewelry and bridal brand emphasizing responsibly sourced diamonds. Overlaps with SDC's bridal and Kimberley-Process-certified diamond supply positioning, though competing via DTC e-commerce rather than wholesale.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries4 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 SDC Designs