Your trusted supplier of the world's most beautiful natural diamonds

Dimexon provides high-quality, ethically sourced and
perfectly calibrated melee diamonds for businesses
across the globe.

Our Core Values

Trust, Honesty, Integrity, Transparency
Consistency in Product and Service Quality
Attention to Detail
Corporate Social Responsibility

The family-run natural diamond supplier for ethical pioneers

We are a trusted supplier of the world’s most beautiful natural diamonds. Our client relationships, expertise and care for those who work for and with us have kept us at the forefront of the diamond industry for more than 50 years.

Dimexon is an agile, efficient and influential global company. Our founder’s values of respect and integrity guide everything we do. These values inspire us to invest in the sustainability of our business and in the open relationships we have with our employees and business partners.

Our international management team offers exceptional customer service and expertise, backed by the company’s fully audited standards of operation. We are approachable, insightful and responsible. Every diamond we sell comes with a fully traceable and ethical provenance.

International Recognition

Dimexon is internationally known as a trusted supplier of cut and polished diamonds. ‍We work closely with our clients, many of which are prestigious watch and jewellery brands, to ensure delivery of exceptional diamonds across a range of cuts and sizes. We have used our decades at the forefront of the industry to combine investment in technology with individual craftsmanship. Our particular area of expertise is round brilliants, which include a range of Forevermark and Hearts & Arrows diamonds. Dimexon is also able to offer a bespoke selection of rare and exceptional stones.

Our suppliers

Transparency is one of our fundamental values. We guarantee that our diamonds have the shortest journey from mine to jewellery, and can give solid assurances about the high ethics and quality throughout our supply chain. Dimexon sources its supplies from the largest diamond mining companies in the world, including De Beers and Rio Tinto. This allows us to offer ethical materials from certified origins. As only our larger diamonds are sold with GIA certificates, it is crucial for us to partner with mining companies that are in line with our core values. This way, we can ensure that the manufacture of our diamonds result in fair wages, the empowerment of women, local community benefaction, environmental protection, and societal wellbeing.

De Beers

De Beers operates in Botswana, Canada, Namibia and South Africa.
It works closely with local governments and communities supporting its business to ensure the sale of its diamonds benefits the people and places where they are discovered.

Rio Tinto

Rio Tinto owns and operates the Diavik mine in Canada. It supports responsible and ethical social and environmental practices throughout the supply chain by working alongside local communities and monitoring activities, sharing insights with stakeholders regularly.