Material: The basis of our work
We consciously choose our materials, with an eye to origin, quality, and traceable supply chains. We also take social and environmental aspects along the value chain into account and are continuously working to further develop our material selection and processes.
For our pieces of jewelry, we use recycled gold and recycled sterling silver. By reusing existing precious metals, the need for additional primary mining can be reduced.
For our diamonds, we rely on lab-grown diamonds. These are created without traditional mining. We work with partners who document their production processes and supply chains through independent standards and certifications.
We also pay attention to thoughtful material selection in our packaging and develop solutions with the goal of keeping material use and packaging waste as low as possible.
Transparency is an important part of responsible action for us. That is why we openly inform about the origin of our materials, our supply partners, and existing certifications, and continuously develop our processes further.
At Maren Jewellery, we want to create jewelry that combines design, quality, and a mindful approach to resources. With recycled precious metals, traceable supply chains, and transparent information, we want to enable you to make an informed purchase decision.
Jewelry by material
Our lab-grown diamonds
Our lab-grown diamonds come from our partner Fenix Diamonds. Every diamond is traceable back to its origin and is produced under controlled conditions. Fenix Diamonds carries out the entire manufacturing process—from crystal growth to cutting and polishing—within its own supply chain. This ensures that every production step remains traceable and the supply chain can be documented end to end. In addition, Fenix Diamonds invests in the expansion of renewable energy for production and has its production sites regularly audited as part of independent SMETA 4-Pillar audits. These assess, among other things, working conditions, health and safety, the environment, and business ethics.
Our Recycled Gold
We source our recycled gold from the C.HAFNER precious metal refinery in Germany. The gold comes exclusively from recycled materials—both from industrial residual materials and from previously used precious metals. By reusing existing precious metals, the need for additional primary mining can be reduced. C.HAFNER operates in accordance with the requirements of the LBMA and LPPM, as well as the standards of the Responsible Jewellery Council (RJC), and documents the origin of the material throughout the supply chain. The closed material cycle helps reduce the use of new raw materials and continue using existing resources.
faqs about our jewelry materials
What are the benefits of recycling gold?
Recycled gold uses existing gold from industrial residual materials or recovered precious metals. Since gold can be melted down and reprocessed again and again without any loss of quality, the material remains in circulation over the long term. This can reduce the need for additional primary mining.
Gold mining is associated with environmental intervention and social challenges. Depending on the region, this may include land use, high water and energy consumption, and the use of chemicals such as mercury or cyanide. By using recycled gold, these impacts can be avoided for the portion of the material that is reused.
Since a large share of the gold mined worldwide is used in the jewelry industry, using recycled gold can help reduce the need for newly mined gold. That is why we at Maren Jewellery consistently use recycled gold. You can also read our interview on this topic with expert Desirée Binternagel on the comparison between Fairtrade and recycled gold.
What does the gold recycling process at Maren Jewelery look like?
For our recycled gold, we work with the German precious metal refinery C.HAFNER. All gold residues generated during jewelry production—for example from casting, filing, or polishing—are collected and fed into the recycling process.
At C.HAFNER, the material is first melted down and then separated into its individual precious metals in several processing steps. The recovered gold is purified and refined into fine gold with a purity of 99.99%. It can then be used again to manufacture high-quality jewelry pieces.
Through this closed material cycle, the precious metal remains in circulation and existing resources can continue to be used.
What are synthetic diamonds?
Lab-grown diamonds differ from naturally formed diamonds neither in their chemical composition nor in their hardness, brilliance, or optical properties. The only difference lies in how they are created: while natural diamonds form in the Earth's crust over millions of years, lab-grown diamonds are produced under controlled conditions.
For our diamonds, we work with our partner Fenix Diamonds, which uses the CVD process (Chemical Vapour Deposition). In this process, the diamond grows crystal by crystal in a controlled environment on a small diamond seed. This creates a diamond with the same physical, chemical, and optical properties as a naturally formed diamond.
Fenix Diamonds carries out the entire production process—from crystal growth to cutting and polishing—within its own supply chain. This ensures that the origin of each diamond remains traceable and that every production step can be documented.
What are the benefits of lab-grown diamonds?
Lab-grown diamonds are created without traditional mining. As a result, their production and supply chain differ from those of naturally formed diamonds. The environmental and social impact of a lab-grown diamond depends, among other things, on the energy supply, production conditions, and supply chain transparency.
At Maren Jewellery, we work with Fenix Diamonds. Every diamond is traceable back to its origin and is produced within a controlled supply chain – from crystal growth to cutting and polishing. According to our partner, Fenix Diamonds also invests in expanding renewable energy for production. The production sites are regularly reviewed as part of independent SMETA 4-Pillar audits.