Maren Jewellery Receives RJC Recertification

We are delighted that in 2026 we were successfully recertified by the Responsible Jewellery Council (RJC). This once again confirms that we meet the high requirements for ethical, social, and environmental standards throughout our entire supply chain.

What is new is that our RJC certification now also covers our synthetic lab-grown diamonds. This underscores our commitment to greater transparency and responsibility throughout the entire supply chain.

We have every reason to celebrate, because we and our sustainable jewelry have once again been RJC certified. This proves once again that our sustainability efforts are paying off, are being noticed, and are also being confirmed by an independent body after a thorough review.

But first things first. In this journal, we would like to explain to you what the RJC certificate actually is, which requirements we had to meet in order to obtain the certificate, and why we pursue several additional approaches that go beyond the RJC's requirements.

The RJC certificate is the certification of the non-profit standards and certification organization known as the Responsible Jewellery Council. The organization was founded in 2005 by renowned founding members such as Tiffany & Co. and Cartier with the aim of promoting ethically, socially, and environmentally responsible standards across the entire supply chain in the jewelry industry.

From precious metal extraction to retail, the interests of workers, communities, business partners, and the environment are to be respected and safeguarded in this way. In addition, each new RJC member is intended to help strengthen trust in the global jewelry industry and reinforce its role as a model for other companies.

Every member – including Maren Jewellery – commits to the RJC Code of Conduct. The requirements it contains are understood as the minimum that companies must meet in order to contribute to socially responsible, humane, ethical, and environmentally friendly conditions throughout the jewelry industry’s supply chains. Before any certification is granted, compliance with these standards is carefully and independently reviewed, which takes some time. Our certification process, for example, took a year. In addition, the RJC provides various guidance resources and encourages members to continuously seek out and implement further opportunities to improve their sustainability efforts – including with the help of their customers.

This already includes many measures. You can find a detailed, data-based breakdown of the individual points in our sustainability report or more information in this journal on the topic of “Sustainable Jewellery Design”.

The requirements for obtaining the RJC certificate, which are reviewed through independent audits, primarily include the following aspects of our business practices: business ethics, human rights and social responsibility, environmental responsibility, and our form of corporate governance. Below, we would like to explain in more detail the most important measures that made a significant contribution to the RJC certification:

In addition to the supply chain transparency required by the RJC Code of Conduct, we source only recycled gold and silver, and our lab-grown diamonds are now also officially recognized as part of our RJC certification. In this way, no harm is caused either to our environment or to the people involved in the supply chain. In addition, valuable resources are conserved and the circular economy is supported. This helps conserve valuable resources and promote the circular economy.

But even that is still not enough for us. Beyond that, we have made a conscious decision to source our materials exclusively from partners who are also RJC-certified. Only in this way can we be sure that the ethical, social, and environmental standards that are of the utmost importance to us are also upheld at partner level.

To put a few figures on it: Producing a piece of jewelry causes an average of 29.27 kg of CO2. By choosing CO2-neutral gold and climate-neutral synthetic diamonds, our average is just 0.4 kg of CO2 per piece of jewelry.

But we also wanted to keep turning this lever for greater sustainability. That is why we have been working with Choose for some time now. It is an initiative that offsets the CO2 consumption of contributing companies through a wide range of projects. For every piece of jewelry produced, we offset 100 kilograms of CO2.

The result of this calculation shows that we offset more CO2 than we cause through the production of our jewelry. This means we go beyond climate neutrality and speak of a climate-positive approach.

We made a conscious decision from the outset to only use recycled precious metals, but as long-standing industry experts we know very well about the fatal conditions along the supply chain of the raw material gold. It is heartfelt for us, with our donation of 3% of our annual profit to the goal ofEarthbeat Foundation to contribute: A legal, safe and sustainable use of gold and the end of new mining.

We care not only about human rights, but also about animal rights. In no area of ​​our production are materials or auxiliary materials of animal origin used. Not so naturally with the packaging for our jewellery. You have the choice: a packaging made of beautiful natural linen or a cardboard packaging with a minimalist design. The linen and cardboard, as well as our paper inserts, filling material, shipping labels and our printing ink come from sustainable partners who act just as responsibly as we do. Here you can find more information and a list of all our partners in the fieldPackaging.

As the focus on sustainability in relation to corporate actions increases, so does the pressure on companies. Unfortunately, this not only leads to more responsible behavior. Incorrect or incomplete sustainability claims can confuse consumers. Independent, internationally recognized certificates such as the RJC provide greater transparency and clarity.

Whilst we are quite proud of our RJC certification and all that we have already achieved on this exciting journey towards a more sustainable future, we are far from finished. Neither we nor our partners are perfect, which is why we are always open to your ideas, questions, suggestions, criticism and dialogue with you.