Our Sustainability Report

Sustainability is a core part of Maren Jewellery. Our aim is to create jewelry in harmony with people and nature and to continuously understand and improve our impact.

We take a holistic approach to sustainability: from the materials we use and the supply chain to emissions, production, and packaging. At the same time, we are aware that we cannot achieve this goal alone – sustainable development requires collaboration across the entire value chain.

Transparency is a prerequisite for progress. With our sustainability report, we create a foundation for making our current status measurable and presenting progress in a transparent, traceable way.

The report provides insight into:

• our CO₂ emissions and how they are developing
• the origin of our materials
• our production and supply chains
• as well as our goals and measures

This enables a fact-based evaluation of our activities and helps us identify areas with potential for improvement.

• In 2025, our company-wide emissions were around 1.04 tonnes of CO₂.
• At the same time, 23.6 tonnes of CO₂ were offset, meaning that mathematically we offset more emissions than we produce.
• The average CO₂ emissions generated in the production of a piece of jewelry amount to approx. 0.4 kg, while conventional jewelry has significantly higher values on average.

These figures show that our measures are having an effect, while also indicating that there is still room for optimization – particularly in areas such as shipping, office processes, and digital infrastructure. (You can find information on the calculation in the sustainability report)

We primarily use materials with a lower environmental impact:

• Recycled gold
  → significantly lower CO₂ emissions compared to newly mined metals
• Lab diamonds
  → lower carbon footprint and better traceability than many conventional alternatives

These material choices can significantly reduce the CO₂ emissions of individual pieces of jewelry compared to conventional production.

99% of our jewelry production takes place in Germany, which reduces transport distances and enables better control of production conditions.

We know all of our producers and work with partners who share our social and environmental standards.

Our supply chain is designed to promote transparency, fair working conditions, and responsible sourcing.

Maren Jewellery does not see itself as a finished system, but as a learning company. Our goal is to continuously question and improve processes.

This includes, among other things:

• the further reduction of CO₂ emissions
• the expansion of circular approaches (e.g. recycling and reuse)
• the continued development of transparency in our supply chains
• as well as collaboration with partners and initiatives

Sustainability is not a state, but a process. Our report is therefore not a conclusion, but a snapshot in time.

We want to:

• Make progress measurable
• Clearly name the challenges
• and define concrete steps for the future

Because only through transparency and continuous improvement can we come closer to our goal of creating responsible jewellery.