Ethica Diamonds is challenging the carbon-loaded and unethical nature of the diamond industry by producing sublime, sustainably-sourced jewellery, designed to last for generations. Founded by a mother and daughter team in Cornwall, the brand is redefining the meaning of luxury jewellery. They exclusively use lab-grown diamonds, working with growers who use renewable energy, and support local communities, prohibit child labour and ensure safe working conditions. The brand is also a member of 1% for the Planet. Diamonds and gemstones are set in fully recycled gold and platinum and their stunning collection includes unique engagement rings and other fine jewellery, as well as a bespoke service where the possibilities are endless.


  1. Multi-award winning jeweller, including Feefo Platinum Service Award three years running and the Marie Claire Sustainability Awards 2023.
  2. The brand remains firm in its pledge to the planet, with only truly sustainable and ethically-sourced products – unlike most mainstream jewellers.
  3. All packaging materials are fully recycled and recyclable, sourced from Forest Stewardship Council-certified forests.
  4. The brand works with suppliers who use 100% renewable green energy to grow diamonds, avoiding conflict metals and materials from questionable sources.
  5. Ethica Diamonds are a female-led, women-based team transforming the jewellery industry.

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Green Salon: Assesses brands to ensure they live up to their sustainability claims. They are a consumer greenwash-filter, ranking brands according to how sustainable they are. Only those that score 50 percent and over are included in the Good Brands Guide. Check out their Directory to find out how your favourite green brands score.