Who we are
Truly Precious is a Dutch foundation (stichting) built by jewellery professionals with decades of combined experience — from gemstone sourcing and artisanal goldsmithing to sustainability consulting and ESG strategy.

We research, collate, and simplify sustainability knowledge, making complex information accessible to every stakeholder across the jewellery supply chain.

Our goal is straightforward: to move more supply chain stakeholders beyond slogans and engage with the real, complex challenges the industry faces.
Our Mission
We gather and simplify sustainability-focused knowledge to strengthen the jewellery industry’s collective ability to ask better questions — and make better decisions. By democratising knowledge for all stakeholders, we push for more robust and bolder initiatives with significant positive impact.
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Our community on Mighty Networks is a free, always-on space for knowledge exchange, peer support, and collective action.

Join jewellery professionals from across the supply chain - all committed to driving positive change.

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Get involved

In an industry first, we bring together a vibrant community of Miners, Pearl Farmers, Refiners, Diamond and Gemstone Dealers, Designers, Jewellery Manufacturers, Brand owners, Retail and other Jewellery Professionals, as well as Consultants, Researchers, Trade Journalists and Influencers, and last but not least, with representatives from industry bodies and other mining and jewellery-related initiatives


Actively contribute to the broad and lively discussions that have the potential to make a real-world impact in a safe and respectful setting!
Recent Events
Truly Precious recently gave talks at leading jewellery trade shows and industry events, sharing knowledge and building connections across the supply chain.
  • Gemworld Munich 2025
    [more to follow]
    Read more
  • Inhorgenta Munich 2026
    [more to follow]
    Read more
Our team
Meet the people behind Truly Precious — jewellery professionals, sustainability experts, and community builders committed to driving real change.
  • Tatjana Li
    Co-Founder and Chair, Board of Trustees
    Gemologist & MBA | | 20 years in the jewellery industry
  • Danielle Keller Aviram
    Co-Founder and General Member, Board of Trustees
    Sustainable jewellery consultant | Researcher & Lecturer
  • Joy Harvey
    Co-Founder and Treasurer, Board of Trustees
    Jewellery Maker | B-Corp Founder at La Luce | LVMH prizewinner
  • Véronique Ribbink
    Co-Founder and Secretary, Board of Trustees
    Jewellery designer & maker | Founder of Eve Sparkles
Meet the full team
Truly Precious in the press
  • “Truly Precious becomes official foundation in the Netherlands” (July 2025)
    Retail Jeweller
  • “Join Truly Precious Foundation to Advance Sustainable Practices”
    GemGuide
  • LinkedIn feature on TP’s digital sustainability launch
    Gemworld International
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Get in touch
Truly Precious Stichting,
Amsterdam, The Netherlands

Email: info@trulyprecious.org