American professional tennis player Madison Keys has been announced as a new brand ambassador for jewellery brand Brilliant Earth.

The 2025 Australian Open champion commented 'I'm thrilled to join Brilliant Earth, a brand that stands on such strong values while constantly bringing innovation to its industry and for its consumers. Their jewellery tells a story of care and purpose, which I deeply admire. I look forward to sharing this journey with my fans and inspiring others to shine brightly in their own way'.