By including this information in products, the brand aims to provide an additional layer of data for customers comparing lab-grown and mined diamonds
Copenhagen: Pandora has introduced a fifth ‘C’- carbon footprint – alongside cut, colour, clarity and carat, in its diamond evaluation operations. The company will now disclose the carbon footprint of each lab-grown diamond across its website through product listings, enabling customers to assess the climate impact of their purchases.
The carbon footprint calculation covers the full production process, from raw materials used in diamond growth to cutting and polishing before the stone leaves the manufacturing facility. According to Pandora, a one-carat lab-grown diamond from its collection generates about 12.58 kilograms of carbon dioxide equivalent emissions, which the company states is around 90% lower than that of a mined diamond of the same size.
By including this ‘5th C’ within product information, Pandora aims to provide an additional layer of data for customers comparing lab-grown and mined diamonds. The initiative reflects how purchasing decisions are increasingly influenced by environmental considerations.
Lab-grown diamonds are chemically and physically identical to mined stones, with the same hardness, thermal properties and appearance. The primary difference lies in the production process. Pandora transitioned to lab-grown diamonds in 2021 and produces them using renewable energy. These diamonds are set in jewellery made from recycled silver and gold, which the company states reduces overall emissions.
Pandora also noted that the carbon footprint of a 14-karat gold Infinite ring with a one-carat lab-grown diamond is comparable to the emissions generated in producing a pair of jeans, providing a reference point for consumers.
The company developed its carbon footprint calculations with external life-cycle assessment specialists, with independent verification conducted by Ernst & Young (EY). The methodology follows ISO standards for carbon footprint measurement and life cycle analysis, using an approach that tracks emissions from raw material sourcing to the finished diamond.
Pandora plans to publish its methodology to support wider transparency across the jewellery sector. The company stated that the initiative responds to demand for clearer sustainability information and aims to encourage similar practices across the industry.
Founded in Copenhagen, Pandora operates in over 100 countries. The company has set a target to reduce greenhouse gas emissions across its value chain by 2030.
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