# Element Six

Element Six is an Asset Manager based in London, United Kingdom.

## Overview

- **Organization type:** Asset Manager
- **Headquarters:** London, United Kingdom
- **Region:** North America
- **Address:** London, United Kingdom
- **Founded:** 1946
- **Assets under management:** Undisclosed
- **Website:** e6.com
- **LinkedIn:** https://www.linkedin.com/company/element-six

## Regulatory record

- **Reports private funds:** No

## About

Welcome to Element Six, a world leader in synthetic diamond and tungsten carbide supermaterials. Find out more about our excellent range today.

## Sectors

- Energy
- Industrial Tech
- Semiconductors
- Mining & Construction
- Optics
- Automotive

## Offices

- Cambridge, UK
- Shannon, Ireland
- Burghaun, Germany
- Springs, South Africa
- Santa Clara, US

## People

- Walter Sommer — Board Member and Chairman of the Board
- Siobhán Duffy — Chief Executive Officer

## Questions

### Who owns Element Six and how is it structured?

Element Six is comprised of two legal entities. The Technologies business is 100% owned by De Beers Group. The Abrasives business is 60% owned by De Beers Group and 40% by the Belgian materials group Umicore. De Beers Group itself is a member of Anglo American plc, meaning Element Six ultimately sits inside one of the world's largest mining concerns. This dual-shareholder structure applies only to the Abrasives division and has been in place since Umicore's predecessor, Union Minière, entered the partnership.

### What does synthetic diamond have to do with semiconductors?

Synthetic diamond possesses the highest thermal conductivity of any bulk material at room temperature. Element Six produces single-crystal diamond wafers that act as heat-spreading substrates for gallium-nitride (GaN) radio-frequency devices, primarily in defense and telecommunications applications. The company sells these wafers into the semiconductor supply chain and positions them as an alternative to silicon-carbide-based thermal management solutions.

### Where does Element Six manufacture its materials?

Primary manufacturing sites are in the United Kingdom, Ireland, Germany, South Africa, and the United States. The firm also maintains commercial offices in Tokyo and Tysons, Virginia. This five-country manufacturing footprint is central to Element Six's pitch as a Western-source supplier of superhard materials, particularly relevant to defense and semiconductor customers seeking to avoid single-point dependencies.

### Does Element Six sell jewelry-grade lab-grown diamonds?

No. Element Six is exclusively an industrial supplier. It does not manufacture, market, or sell gemstone-quality lab-grown diamonds for jewelry. Its synthetic diamond output is designed for cutting tools, drilling, thermal management, optics, and semiconductor applications, not for consumer gemstone markets. That separation protects De Beers' mined diamond brand while allowing Element Six to compete in industrial and technology markets.

### How is Element Six's business separate from De Beers' diamond mining?

Element Six is legally, commercially, and operationally separate from De Beers' diamond exploration and mining activities. It does not participate in rough diamond trading, beneficiation, or consumer retail. Its synthetic diamond synthesis and tungsten carbide sintering are capital-intensive industrial processes that serve business-to-business customers across energy, mining, machining, automotive, and electronics, with no overlap into the jewelry pipeline.

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Last updated: 2026-06-03T20:00:00.000Z

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