Jessica McCormack

Jessica McCormack designs handcrafted diamond jewellery. Combining modernity and timelessness, her mission is to create jewellery that generations of women will wear and adore.
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3 years

Trees in sky BEST



Absolute carbon reduction

Reporting Boundary: JMc Townhouse – 7 Carlos Place, W1K 3AR

Emission Sources: Electricity, T&D Losses, Natural Gas, Water, Waste, Paper

Reporting Period: 01 Jan 2021 to 31 Dec 2021


Carbon reduction per employee


Location-based total carbon footprint

18.5 tC0₂e

Location-based total carbon footprint per employee

0.6 tC0₂e

Market-based total carbon footprint

17.5 tC0₂e

Market-based total carbon footprint per employee

0.5 tC0₂e


FTE employees

We engage our employees and wider stakeholders to unlock their talent and knowledge to drive year on year progress in sustainability.



UN Sustainable Development Goals

We recognise that transparent communication is essential for transformational change and we quantifiably contribute to 9 SDG.


Certification story

Jessica McCormack, a designer of exceptional diamond jewellery for the modern woman and creator of heirlooms for future generations, has achieved Planet Mark certification. 

Achieving Planet Mark is based on the commitment to continuous improvement in sustainability in its business operations by measuring and reducing its carbon footprint and engaging its stakeholders.

This is Jessica McCormack’s third year of business carbon footprint reporting. Jessica McCormack’s total carbon footprint in year ending December 2021 was 18.5 tCO2e and the relative carbon footprint was 0.6 tCO2e per employee. 

It first calculated the carbon footprint of its Carlos Place shop for the year ending December 2019 and set a target to reduce emissions by 5% annually.

Jessica McCormack has often talked of the value of sustainability and incorporated sustainable principles into her work. Much of McCormack’s work involves the circular principles of reworking vintage jewellery and jewellery boxes for the modern customer. ‘Upcycling’ is embedded into the work McCormack does, often working directly with clients’ existing jewellery to help them revitalise collections. McCormack’s philosophy is that diamonds are to be worn, not locked away and wasted.

Over the next year, Jessica McCormack will continue reducing its carbon emissions and sharing its journey with its community to inspire others. By being more strategic about its environmental responsibility, the company will be able to significantly increase its positive impact and hope to encourage continual improvements within its community.

Steve Malkin
Planet Mark
“I’m so pleased to have Jessica McCormack join us at Planet Mark. The company shows that beauty and sustainability can go hand in hand, and the ethos of the brand is in a prime position to make great strides to reduce its carbon footprint, and serve as an exemplar to the industry as a whole. Measuring the brand’s carbon footprint and pledging to reduce it is the first step in that journey. I look forward to working more with Jessica McCormack and seeing the progress made.”

Through Planet Mark, the company has protected an area of endangered rainforest thanks to Cool Earth; a charity working alongside rainforest communities to halt deforestation. Its pledge through Cool Earth directly supports the Asháninka community in Central Peru.

It has also helped the Eden Project – an educational charity building connections with each other and the living world, exploring how we can work together towards a better future.

Luxury brands must seize the opportunity created as customers long for sustainable products. The sector is at an inherent competitive advantage, with products and relationships with customers designed to stand the test of time, and an emphasis on quality over quantity. However, this ethos must be combined with an objective and scientific approach to sustainability that encompasses a company’s entire supply chain. 

Future targets

Reduce carbon emissions by at least 2.5% each year

To recertify next year Jessica McCormack must reduce emissions by 2.5%.

Aim to reduce carbon emissions by 5% each year

A 5% year-on-year reduction is the target reduction recommended by Planet Mark.

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