A fair generation of diamonds
To produce ethical diamonds for the jewellery industry, we take a holistic approach to sustainability – on an environmental, commercial and social level.
When Nevermined was founded, the founding couple pursued a common mission: to produce real diamonds for mandana’s own jewellery collections that meet the highest quality standards – and to do so sustainably. Nevermined diamonds should be the solution to all ethical and environmental conflicts associated with mining diamonds on the one hand and imported lab-grown diamonds on the other.
Why lab-grown diamonds are more sustainable
Mined diamond vs. lab-grown diamond
For many decades, the diamond industry faced serious challenges. The mining of mining diamonds was and still is associated with social and ethical conflicts and with serious environmental influences. So-called “blood diamonds” have also gained their fame due to an eventful history. By producing diamonds in the lab, we at Nevermined can avoid all the conflicts that come with mining diamonds:
The exploration and mining of mining diamonds requires the use of fossil fuels. These include, for example, diesel, gasoline, marine gas or oil. Their combustion releases greenhouse gases, which has a negative impact on the environment and climate change. In contrast, real lab-grown diamonds from Nevermined are produced completely without fossil fuels. Their production requires only electricity, which Nevermined obtains from renewable energy sources.
Made in Europe
Minimal transport routes, maximum transparency

Lab-grown diamonds (“LGD”) thus stand out from natural diamonds due to numerous advantages. Nevertheless, buying LGD externally for mandana’s jewelry collections was never an option for the founding couple. Most lab-grown diamond manufacturers are located outside of Europe. This would involve long transport routes for the diamonds to Germany and highCO2 emissions. In addition, many manufacturers do not ensure full transparency about their production processes and working conditions. This would not have ensured sustainable production of the diamonds. For this reason, Christine Marhofer and Michael Marhofer have decided to produce their diamonds themselves. In our own Nevermined laboratory in Essen, Germany, lab-grown diamonds are created in the heart of Europe under fair, transparent and audited conditions.
SCS-007-01 Certification
Proven to be sustainable
As one of the first diamond producers and traders, Nevermined diamonds have been officially certified according to SCS-007-1 and have received the certificate “SCS Certification Standard for Sustainability Rated Diamonds”. This means that we meet all of the strict SCS criteria for our lab-grown diamonds: from origin, traceability and sustainable production to ethically responsible environmental, social and governance practices.

Powered by all-natural electricity
Environmentally-friendly use of resources
The responsible and conscious use of electricity as a resource is the most important factor in the sustainable design of our production. For this reason, we only use the best possible, most sustainable variant of electricity: green electricity. This is not obtained from fossil fuels, but exclusively from renewable energies, such as solar, wind or hydropower. We are working on covering part of our energy needs ourselves in the future.
Conscious luxury
mandana x sustainability
With the collections from mandana, Nevermined diamonds become pieces of the heart for eternity. We also attach great importance to sustainability in every respect with our jewellery brand. We only use recycled 750 gold (18 carat) to reduce the need for new gold mining. All jewellery is packaged in sustainable cases made from an innovative vegan leather alternative made from olive residues. Even their refinement is biodegradable. With the EarthChild Project, we at mandana support a South African charity that equips disadvantaged children with valuable skills for a mindful, environmentally conscious way of life – another contribution to leaving the world a little better for our children and the generations after us.

On the way to a more sustainable future
We are not perfect. And we probably never will be. But we try to get as close as possible at all times. New possibilities and alternatives are constantly emerging to make existing processes a little better, more sustainable and more durable. And that’s exactly what we appreciate. Day after day, we also work to position ourselves as well as possible for a sustainable future. Value-based entrepreneurship is the line we take. For us, it means finding solutions where they are most needed, taking responsibility for our employees and our environment, being mindful of our nature’s resources, and creating sustainability without being wasteful. We don’t want to soothe our conscience. We want to lead the way with a clear conscience in order to be a role model for our children and future generations. This is what we stand for with our commitment to sustainability.