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IonQ Breakthrough in Synthetic Diamond Materials Accelerates Quantum Networking Scale and Production

Advancement marks pivotal move toward diamond-based quantum devices that will accelerate IonQ鈥檚 roadmap toward scalable, fault-tolerant quantum systems

COLLEGE PARK, Md--(BUSINESS WIRE)-- IonQ (NYSE: IONQ), the leader in the quantum computing and networking industries, today announced a significant breakthrough in creating essential hardware for building large-scale quantum networks and clustered compute. In collaboration with Element Six, a De Beers Group company specializing in synthetic diamond materials for industrial applications, the team has developed high-quality, quantum-grade diamond films. These films allow diamond-based devices to be made using standard semiconductor manufacturing techniques.

This advancement is crucial because synthetic diamonds are a key component for building quantum memory systems and the photonic interconnects that link individual quantum computing systems together. By making synthetic diamonds compatible with standard chipmaking processes, IonQ is accelerating the production of scalable quantum systems and moving toward manufacturing quantum networks and quantum compute devices at an industrial level.

"Foundry-compatible, quantum-grade diamond films change the game in photonic interconnects, compute processors, and quantum networking," said Niccolo de Masi, Chairman and CEO of IonQ. 鈥淭his innovation will allow us to mass-produce consistent, high-performance systems designed for commercial quantum networks.鈥�

The addition of this new capability makes IonQ鈥檚 quantum technology stack, including quantum interconnects and repeaters, foundry-compatible. Moreover, the ability to industrialize thin film quantum-grade diamonds opens new possibilities not just for IonQ鈥檚 computing and networking roadmap, but also for adjacent fields such as quantum sensing.

鈥淪ynthetic diamond is one of the most promising platform materials for quantum technologies, with use-cases across the entire ecosystem, especially in sensing and networking,鈥� said Siobh谩n Duffy, CEO at Element Six. 鈥淭hese synthetic diamond thin films will enable at-scale fabrication of high performance devices."

The stringent material requirements for producing micro- and nano-structured devices previously limited fabrication to bespoke, R&D-scale techniques not viable for reliable, at-scale production. IonQ鈥檚 new approach, enabled by Element Six鈥檚 world-leading materials, overcomes this barrier by allowing the bonding of quantum-grade diamond films onto common substrates like silicon and silicon nitride. This unlocks two essential capabilities:

• Foundry Compatibility: For the first time, synthetic diamond quantum devices can be produced using the same tools and processes that power the $1 trillion semiconductor industry. This supports scalable production of diamond-based devices like quantum memories, sensors, and other microelectromechanical systems.
• Heterogeneous Integration: Synthetic diamond can now be incorporated into hybrid, on-chip systems that combine the best of quantum and classical materials, for example integrating diamond-based quantum memories alongside non-diamond-based devices, such as switches, modulators, and electronic control layers.

Today鈥檚 announcement builds on the recent completion of IonQ鈥檚 Lightsynq acquisition, and on IonQ鈥檚 continued progress along its photonic interconnect . Integration of Lightsynq鈥檚 photonic interconnect, quantum memory technologies, and its IP portfolio will accelerate IonQ鈥檚 roadmap toward scalable, fault-tolerant quantum systems.

For more information, visit . The research preprint is available on the .

About IonQ

[NYSE: IONQ] is the leading commercial quantum computing and quantum networking company, delivering high-performance systems aimed at solving the world鈥檚 most complex problems. IonQ鈥檚 current generation quantum computers, and, are the latest in a line of cutting-edge systems that have been helping customers and partners such as achieve 20x performance results.

The company is accelerating its technology roadmap and intends to deliver the world鈥檚 most powerful quantum computers with 2 million qubits by 2030 to accelerate innovation in drug discovery, materials science, financial modeling, logistics, cybersecurity, and defense. IonQ鈥檚 advancements in quantum networking also positions the company as a leader in building the quantum internet.

The company鈥檚 innovative technology and rapid growth were recognized in Newsweek鈥檚 2025 Excellence Index 1000, Forbes鈥� 2025 Most Successful Mid-Cap="/articles/market-capitalization-explained" title="Read: What Is Market Capitalization and How It Is Calculated" class="article-link" rel="noopener">Mid-Cap Companies list, and Built In鈥檚 2025 100 Best Midsize Places to Work in Washington DC and Seattle, respectively. Available through all major cloud providers, IonQ is making quantum computing more accessible and impactful than ever before. Learn more at .

About Element Six

Element Six, part of the De Beers Group, is a world-leader in the design, development and production of synthetic diamond advanced material solutions. The company operates worldwide with primary manufacturing facilities in US, UK, Ireland, Germany, and South Africa.

For seventy-nine years, Element Six has harnessed the extreme properties of synthetic diamond to open up new possibilities in areas such as photonics, acoustics, power transmission, water treatment, thermal management and sensors. The company鈥檚 advanced material solutions are used in a wide range of applications across multiple industries including manufacturing in the automotive and consumer electronics industries, cutting and drilling in the oil and gas industry, and in components for mining, road, construction and agriculture applications.

IonQ Forward-Looking Statements

This press release contains certain forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Some of the forward-looking statements can be identified by the use of forward-looking words. Statements that are not historical in nature, including but not limited to the terms 鈥渁ccelerating,鈥� 鈥渁dvancements,鈥� 鈥渂uilding,鈥� 鈥渃ontinues,鈥� 鈥渄eepening,鈥� 鈥渄elivering,鈥� 鈥渄riving,鈥� 鈥渆xpanding,鈥� 鈥済rowth,鈥� 鈥渋ntends,鈥� 鈥渋ntent,鈥� 鈥渙ngoing,鈥� 鈥渙ptimizing,鈥� and other similar expressions, are intended to identify forward-looking statements. These statements include those related to the IonQ鈥檚 quantum computing capabilities and plans; IonQ鈥檚 technology driving commercial quantum advantage in the future; the necessity, effectiveness, and future impacts of IonQ鈥檚 offerings available today; and the scalability, fidelity, efficiency, viability, accessibility, effectiveness, importance, reliability, performance, speed, impact, practicality, feasibility, and commercial-readiness of IonQ鈥檚 offerings. Forward-looking statements are predictions, projections, and other statements about future events that are based on current expectations and assumptions and, as a result, are subject to risks and uncertainties. Many factors could cause actual future events to differ materially from the forward-looking statements in this press release, including but not limited to: IonQ鈥檚 ability to implement its technical roadmap; changes in the competitive industries in which IonQ operates, including development of competing technologies; IonQ鈥檚 inability to attract and retain key personnel; or IonQ鈥檚 ability to deliver, and customers鈥� ability to generate, value from IonQ鈥檚 offerings. You should carefully consider the foregoing factors and the other risks and uncertainties disclosed in the Company鈥檚 filings, including but not limited to those described in the 鈥淩isk Factors鈥� section of IonQ's filings with the U.S. Securities and Exchange Commission, including but not limited to the Company's most recent Annual Report on Form 10-K and reports on Form 10-Q. These filings identify and address other important risks and uncertainties that could cause actual events and results to differ materially from those contained in the forward-looking statements. Forward-looking statements speak only as of the date they are made. Readers are cautioned not to put undue reliance on forward-looking statements, and IonQ assumes no obligation and does not intend to update or revise these forward-looking statements, whether as a result of new information, future events, or otherwise. IonQ does not give any assurance that it will achieve its expectations.

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