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Ethics & sustainability

Families, collectors and banks entrust us with significant assets. Knowing where every stone comes from, who we deal with, and giving back to the communities at the source is part of our work.

Our commitments in practice

Only trusted partners

We buy only from partners we know personally, many of them for more than twenty years.

At the mines ourselves

We have visited many mines around the world ourselves, and verified their working conditions and ethical standards on site.

Due diligence

We check who we buy from and who we sell to, before every transaction.

Anti-money-laundering laws

We comply fully with anti-money-laundering legislation.

Natural, untreated stones

We only sell natural, untreated precious stones, appraised by us and certified by third-party, internationally recognised laboratories.

Professional standards

Member of the ASNP, ICA and Swiss Gemmological Society. We follow the Kimberley Process for diamonds.

At a mine with a local partner

We know where our stones come from

For decades, Elke and Thomas Berr have travelled to the mines and gem markets themselves. Seeing the rough before it is cut, meeting the miners and dealers, and understanding the local trade is the best guarantee of a stone's origin.

It is also why we work with so few intermediaries: the fewer hands a stone passes through, the clearer its history.

Buying from local dealers, 1997
Sorting rough stones with a dealer
The entrance to Mogok, “Ruby Land”, Myanmar

Supporting mining communities

The stones we love come from villages where families have worked the mines for generations. We support these mining communities and villagers, in particular by supporting local schools.

Children in a village school classroom in Myanmar
A village school in Myanmar that we supported.
Looking at rough rubies with women from a mining village
Looking at rough rubies with villagers.

Due diligence & compliance

Before every purchase and every sale, we check the identity of the people we deal with and the origin of the stones. We comply fully with anti-money-laundering legislation and keep the documentation of each transaction.

  • Checks on buyers and sellers
  • Documented origin and history of each stone
  • Laboratory certificates from SSEF, Gübelin, GRS or GIA for important stones
  • Kimberley Process for diamonds

Sustainability

A precious stone is one of the most durable things there is: it does not wear out, and it passes from one generation to the next.

  • Fewer intermediaries: we buy at the source from long-standing partners, so more of the value stays in the producing regions
  • A second life for jewellery: stones from inherited pieces re-set in new creations, and collections resold rather than left in a safe
  • Traceability on request, through a secure digital record with Toto Finance
Ask us about a stone's origin For banks & family offices

Meet us in Geneva

For an appraisal, an inheritance valuation, a seminar or advice before a purchase.