Brilliant Earth vs Karst
An independent side-by-side ethics comparison of Brilliant Earth and Karst across certifications, average sustainability score and product range.
Brilliant Earth
92/100 avg ethics
4 products tracked
Certifications
Karst
Higher score93.3/100 avg ethics
3 products tracked
Certifications
Top Brilliant Earth products
A quintessential ethical luxury piece crafted from recycled gold and Beyond Conflict Free™ diamonds.
Luxury lab-grown diamond studs featuring ethically sourced recycled 14k gold and Beyond Conflict Free™ standards.
A quintessential ethical engagement ring featuring Beyond Conflict Free™ diamonds and recycled precious metals, backed by industry-leading transparency standards.
Superior ethical alternative to mined diamonds, featuring carbon-neutral lab diamonds set in recycled 14k gold. A timeless staple for the conscious consumer seeking luxury without the environmental or social toll of traditional mining.
Top Karst products
Revolutionary 'stone paper' notebooks made without water, trees, or bleach, providing a waterproof and tear-resistant writing surface.
A revolutionary tree-free notebook made from repurposed calcium carbonate (stone) instead of wood pulp, using significantly less water and energy in production.
A revolutionary waterproof notebook made entirely from recycled stone waste instead of trees, utilizing zero water or bleach during production.
Frequently asked: Brilliant Earth vs Karst
Which is more ethical, Brilliant Earth or Karst?+
Karst scores higher on independent ethics scoring: Brilliant Earth averages 92/100 vs Karst at 93.3/100.
Which has more certifications?+
Brilliant Earth appears with 8 verified certifications (B Corp, FSC Certified, SCS Certified, Carbon Neutral, Responsible Jewellery Council). Karst appears with 4 (B Corp, Cradle to Cradle, Climate Neutral, 1% for the Planet).
Are these scores independent?+
Yes. Both brands are scored by the same methodology — never paid placement. See our methodology page for the weighting.