Diamond Foundry

What Diamond Foundry does

Diamond Foundry, founded in 2012 and headquartered in South San Francisco, manufactures synthetic diamonds using proprietary chemical vapor deposition (CVD) reactor technology. The company operates two distinct business segments: a semiconductor-grade materials business producing single-crystal diamond (SCD) wafers, diamond transistors, and diamond-based thermal management solutions for AI chips, data centers, and electric vehicle power electronics; and a consumer-facing Eco-Diamond jewelry line powered by renewable energy, launched in June 2025.

The company's core technology is built around CVD synthesis of diamond, with diamond's thermal conductivity exceeding 2000 W/m·K enabling performance gains — claimed at up to 10x faster AI chip performance, 5x data center power density per 1U, and 8x more power for EV electronics — that conventional silicon and silicon carbide substrates cannot match. Diamond Foundry has developed what it calls the DF Tech Stack, a vertically integrated semiconductor-grade manufacturing platform operated at industrial scale with what the company describes as a 'real zero' carbon footprint. Volume production of SCD wafers began at the Trujillo, Spain facility in December 2025 following substantial European government investment.

The company generates revenue primarily through B2B enterprise sales of specialized diamond materials to mega technology firms in AI chip manufacturing, data center operations, and electric vehicle power electronics applications. Pricing is not publicly disclosed and operates on a quote-based enterprise model with direct field sales. The Eco-Diamond consumer line uses a separate hardware sales model for lab-grown gem diamonds. Diamond Foundry employs 501–1,000 people and has raised over $350 million in private equity funding since inception, supplemented by over EUR 3 billion in government-backed facility investments for the Spain expansion.

Name

Diamond Foundry

Legal name

Diamond Foundry

Website

https://diamondfoundry.com

Company type

Private

Founded year

2012

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Diamond Foundry manufactures semiconductor-grade synthetic diamonds using proprietary CVD reactor technology, producing single-crystal diamond wafers, diamond transistors, and thermal management solutions for AI chip makers, data center operators, and electric vehicle manufacturers, alongside a consumer eco-diamond jewelry line.

Ownership category

akta.pro rank

Product category

Semiconductor Materials

NAICS

Semiconductor and Other Electronic Component Manufacturing (33441), Semiconductor and Other Electronic Component Manufacturing (3344)

SIC

Jewelry, Precious Metal (3911)

akta.pro primary industry

Compound Semiconductor Wafers & Substrates (SiC/GaN/GaAs/InP/Sapphire) (HDAHAGAB)

akta.pro secondary industries

Synthetic/Lab-Grown Diamonds & Gemstones (Manufacturing & Trading) (CRAKAJAM), RF & Compound Semiconductor Foundries (GaAs/GaN/SiGe) (HDAHACAD)

Keywords

• Semiconductor diamond wafers
• CVD synthetic diamonds
• Thermal management materials
• Lab-grown diamond jewelry
• Single-crystal diamond substrates

Headquarters

HQ city

San Francisco

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Diamond Semiconductor Products: Sale of semiconductor-grade diamond wafers and substrates for thermal management in AI chips, data centers, and power electronics applications. Revenue from B2B enterprise sales of specialized diamond materials to technology companies.
2. Eco-Diamond Line: Renewable energy-powered eco-diamond product line launched in June 2025, serving the consumer and industrial diamond market with sustainable lab-grown diamonds.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Diamond Foundry manufactures semiconductor-grade single-crystal diamond wafers and diamond transistors using proprietary Chemical Vapor Deposition (CVD) reactor technology. The company's products address thermal management challenges in AI chips, data centers, and electric vehicle power electronics. Diamond Foundry also operates a consumer-facing renewable-energy-powered eco-diamond jewelry line.

Product overview

Diamond Foundry produces semiconductor-grade diamond materials for technology applications, offering a unified platform of diamond-based solutions. The core products include Diamond Wafers (the world's first diamond wafer) and Diamond Transistors, supported by the DF Tech Stack platform. Applications include AI Chip Thermal Management, AI Datacenter Power Solutions, and Electric Car Power Electronics, all leveraging diamond's superior thermal conductivity (>2000 W/m·K) to address heat management challenges in advanced electronics. The company also operates manufacturing foundries including Foundry II in Spain. Additionally, Diamond Foundry offers a consumer-facing Eco-Diamond Line of renewable energy-powered lab-grown diamonds for jewelry applications. The product portfolio spans from foundational semiconductor materials (wafers, transistors) through application-specific solutions to consumer products.

Differentiator

Problem solved

Functional benefit

Products and services

• Diamond Wafer Semiconductor-grade diamond wafer - the world's first diamond wafer, serving as a foundational thermal management component for advanced electronics, AI chips, data centers, and high-power applications. Targeted at technology companies and semiconductor manufacturers.
• Diamond Transistor Diamond-based transistor technology leveraging diamond's unmatched semiconductor physics properties for high-power and high-frequency electronics applications. Targeted at power electronics manufacturers and semiconductor companies.
• Eco-Diamond Line Consumer-facing lab-grown diamond jewelry line powered by renewable energy, positioned as an environmentally sustainable alternative to mined diamonds. Targeted at eco-conscious consumers and the jewelry market.

Quantifiable outcome

• Up to 10x faster AI chip performance with diamond thermal management
• +5 more outcomes

Named customers3 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Scale indicators6 records

Recent moves9 records

Expansion highlights6 records

Direct peers

• Element Six: Element Six (a De Beers Group company) is the world's leading producer of synthetic industrial diamonds and CVD diamond materials, including diamond substrates for electronics and thermal management. Directly comparable as the most established competitor in synthetic diamond manufacturing targeting semiconductor and industrial applications.
• Sumitomo Electric: Sumitomo Electric produces single-crystal diamond wafers and synthetic diamond products for semiconductor and industrial applications. A direct peer in diamond wafer/substrate manufacturing, with comparable CVD process expertise and overlapping customer base in electronics thermal management.
• Lightbox Jewelry (De Beers): Lightbox Jewelry is De Beers' lab-grown diamond consumer brand, directly comparable to Diamond Foundry's Eco-Diamond line. Both produce lab-grown diamonds for the consumer jewelry market using sustainable production methods, competing in the same lab-grown diamond jewelry segment.

Emerging players

• AKHAN Semiconductor: AKHAN Semiconductor develops diamond-based electronics, including diamond transistors and semiconductor devices. An emerging competitor specifically focused on diamond semiconductor applications, narrower in scope than Diamond Foundry but operating in the same diamond electronics category.

Broad incumbents

• Wolfspeed: Wolfspeed is the leading producer of silicon carbide (SiC) substrates for power electronics and EV applications — a competing wide-bandgap semiconductor material to diamond. Comparable as an alternative substrate provider addressing similar thermal and power density challenges in EVs and high-power electronics.
• Coherent Corp: Coherent Corp (formerly II-VI) is a major semiconductor materials company producing SiC substrates, GaAs wafers, and other compound semiconductor materials. Comparable as an established broad incumbent in the compound semiconductor wafer/substrate space where Diamond Foundry is competing.
• Resonac (formerly Showa Denko): Resonac produces SiC epitaxial wafers and other semiconductor materials serving power electronics and EV markets. A broad incumbent in compound semiconductor substrates, competing indirectly with Diamond Foundry in addressing thermal and power density challenges in advanced electronics.
• SK Siltron: SK Siltron produces silicon carbide (SiC) wafers for power semiconductors targeting EV and industrial applications. A broad incumbent in wide-bandgap semiconductor substrates, providing alternative materials to Diamond Foundry's diamond wafers for thermal management and power electronics.
• AIXTRON: AIXTRON manufactures MOCVD and CVD deposition equipment used in semiconductor manufacturing, including for compound semiconductor production. A broad incumbent in CVD/deposition technology whose equipment is used to produce materials comparable to Diamond Foundry's diamond wafers.
• Veeco Instruments: Veeco Instruments manufactures deposition and process equipment for semiconductor compound materials, including MOCVD systems used in LED, power electronics, and photonics manufacturing. A broad incumbent comparable through its CVD/deposition technology focus.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/diamondfoundry

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Funding overview

Funding rounds4 records

Investors8 records

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 Diamond Foundry