Information, Forms and Video
About Innovation and Solutions
Latest News of the DD Group
Information,
Forms and Video
About Innovation
and Solutions
Latest News
of the DD Group
Information, Forms and Video
About Innovation and Solutions
Latest News of the DD Group

Diamonds, the other way around!
Business units

Video
DD Company tour
Sneak preview diamond polishing
Sneak preview spheres
Sneak preview diamond mounting
Pietraverde
Forms
Innovate together
Customer focused innovation
Highly qualified and professional personnel are important for any business. However, for the DD-Team this is a way of living and the very foundation of our existence. The high technical skills and the superior level of our staff are its strongest offering to our clients when facing new designs, offering new diamond grades and solving customers’ problems. Proven: the abilities and the innovative ideas of our engineers mixed with the properties of our diamonds have elevated our customers to a superior position in their marketplaces.
Assemblies
Developing & Engineering complete solutions
DD is specialized in developing high-precision diamond instruments, modules, and components for the high-tech industry based on your requirements. These developments mostly have requirements for which the diamond and mechanical competences of DD are beneficial. With our competences in product development and supply chain management we provide you a high-quality product over the complete product lifetime.
Ton Janssen
CEO
Welcome to our virtual booth. My name is Ton, co-founder and CEO of the Dutch Diamond Group. Besides the overall management, sales & marketing is my responsibility. I am open to share my 40 years of experience in the diamond industry with you. I hope you’ll experience the same passion for diamond here as I’ve had during my career. Enjoy your stay at our booth!
Chris Janssen
Production manager and sales
Sales contact for all products of:
Chris is my name. As production manager my goal is the best possible progress of the running orders of the DD Group and I am your sales contact person. Besides these challenges, I am the product specialist for Parts & More, our business unit for non-diamond products.
Loek van den Boom
Development engineer
Product technical consultation for:
Hi guys, my name is Loek and as a Development Engineer I make diamond accessible to as many people and companies as possible. My main task in the group is the improvement of production processes and discovering new markets with innovative products. My fields of expertise are optical products, diamond spheres and The Diamond Academy. Curious about the possibilities?
Harry Heijnemans
Production engineer
Product technical consultation for:
My name is Harry, active in the diamond tool industry for more than 20 years and since 2015 active as production engineer for Dutch Diamond Group. I am specialized in diamond orifices for waterjet cutting and diamond milling tools for the intra ocular lens industry. I will be happy to meet you and advice you with my expertise.
Britt and Marjolein,
Marketing
We are Britt (L) and Marjolein (R). Both we are active as marketing employees and are happy to share our passion for diamonds also in our jewelry business unit DD Luxury. We are proud to contribute to the further rollout of our PietrAverde brand. Marjolein will also be responsible for DD’s online shop from March 1st, 2021.
Ton Janssen
CEO
Welcome to our virtual booth. My name is Ton, co-founder and CEO of the Dutch Diamond Group. Besides the overall management, sales & marketing is my responsibility. I am open to share my 40 years of experience in the diamond industry with you. I hope you’ll experience the same passion for diamond here as I’ve had during my career. Enjoy your stay at our booth!
Chris Janssen
Production manager and sales
Sales contact for all products of:
Chris is my name. As production manager my goal is the best possible progress of the running orders of the DD Group and I am your sales contact person. Besides these challenges, I am the product specialist for Parts & More, our business unit for non-diamond products.
Loek van den Boom
Development engineer
Product technical consultation for:
Hi guys, my name is Loek and as a Development Engineer I make diamond accessible to as many people and companies as possible. My main task in the group is the improvement of production processes and discovering new markets with innovative products. My fields of expertise are optical products, diamond spheres and The Diamond Academy. Curious about the possibilities?
Harry Heijnemans
Production engineer
Product technical consultation for:
My name is Harry, active in the diamond tool industry for more than 20 years and since 2015 active as production engineer for Dutch Diamond Group. I am specialized in diamond orifices for waterjet cutting and diamond milling tools for the intra ocular lens industry. I will be happy to meet you and advice you with my expertise.
Britt and Marjolein,
Marketing
We are Britt (L) and Marjolein (R). Both we are active as marketing employees and are happy to share our passion for diamonds also in our jewelry business unit DD Luxury. We are proud to contribute to the further rollout of our PietrAverde brand. Marjolein will also be responsible for DD’s online shop from March 1st, 2021.

Diamonds, the other way around!
Business units

Video
DD Company tour
Sneak preview diamond polishing
Sneak preview spheres
Sneak preview diamond mounting
Pietraverde
Forms
Innovate together
Customer focused innovation
Highly qualified and professional personnel are important for any business. However, for the DD-Team this is a way of living and the very foundation of our existence. The high technical skills and the superior level of our staff are its strongest offering to our clients when facing new designs, offering new diamond grades and solving customers’ problems. Proven: the abilities and the innovative ideas of our engineers mixed with the properties of our diamonds have elevated our customers to a superior position in their marketplaces.
Assemblies
Developing & Engineering complete solutions
DD is specialized in developing high-precision diamond instruments, modules, and components for the high-tech industry based on your requirements. These developments mostly have requirements for which the diamond and mechanical competences of DD are beneficial. With our competences in product development and supply chain management we provide you a high-quality product over the complete product lifetime.
Latest news
Innovative diamond ball bearings
We are proud to announce we are involved in a prestigious Clean Sky 2 project, a sub-set of Horizon 2020 which is the biggest EU Research and Innovation programme. Together with Rolls-Royce and the University of Oxford we are working on innovative diamond bearings. With this innovation, bearings would have lower friction, better temperature characteristics and a longer life due to the increased hardness capability.
5 types of diamond orifices
Nano diamond orifices:
Black Diamond orifices:
Mono Crystalline orifices:
Mono Crystalline orifices:
Mono Crystalline Micro orifices:
The ring
Follow the project step by step

In 10 years after its establishment, DD has developed into a unique company where diamond is processed in products with applications in the High Tech industry. Apart from the many universities that we work with, our customer portfolio mainly consists of big names each in their specific field. We thank our relations for the trust they have given us and the fact that we have become this company, thanks to them.