Ethical Provenance
Effective date · 22 May 2026 · Version 1.0
Donati Atelier sources gemstones, diamonds and gold under documented chains of custody. This page sets out the standards we apply, the certifications we follow and what a Client can expect to receive with every piece.
1. Diamonds
All diamonds we work with are sourced from suppliers fully compliant with the Kimberley Process Certification Scheme, which prevents the flow of conflict diamonds. Every shipment we receive is accompanied by Kimberley warranties stating the diamonds are sourced from non-conflict territories under United Nations Resolutions.
Diamonds above 0.30ct in our pieces carry an independent grading certificate from GIA (Gemological Institute of America) or IGI (International Gemological Institute), reporting 4Cs and any treatment.
2. Coloured stones
Rubies, sapphires, emeralds, peridots, tsavorites, morganites and topaz are sourced through long-standing relationships in Chanthaburi and Bangkok, two of the world's most regulated gemstone trading hubs.
For coloured stones above 1ct used in High Jewellery, we provide a laboratory report from one of: SSEF (Switzerland), Gübelin (Switzerland) or GRS (Thailand). These reports state country of origin and any treatment.
Treatments (heat, oil, fissure filling) are disclosed in full. Untreated stones are clearly identified as such.
3. Gold and platinum
Our gold is 18kt minimum, sourced from refiners that comply with the OECD Due Diligence Guidance for Responsible Supply Chains and that hold LBMA Responsible Gold certification or equivalent. Recycled gold content is available on request and is the default for Co-Design and Bespoke commissions when not otherwise specified.
Platinum, when used, follows the same due-diligence standard.
4. Titanium and rhodium
Aerospace-grade titanium used in our stretchable Pyramid family is sourced from European mills. Rhodium plating for black-gold finishes is applied in-house under controlled conditions.
5. Chain of custody documentation
Every commission ships with:
- The relevant gemstone laboratory certificate(s)
- A Donati Certificate of Origin and Construction detailing metal alloy, total carat weight, finishing techniques and lead artisan
- Warranty card
- Kimberley Process declaration for diamond pieces
- On request: refining-source declaration for the gold used
6. Workshop ethics
Fair labour
All artisans in our Bangkok workshop are employed under formal contracts compliant with Thai labour law, including health insurance, social-security contributions and overtime regulations. We do not subcontract production to undisclosed third parties.
Health and safety
Our setting, polishing and engraving rooms are equipped with proper ventilation, personal-protection equipment and dust-extraction systems. Annual health checks are offered to all artisans.
Skills transfer
The atelier runs an internal apprenticeship pathway pairing senior Italian-trained jewellers with junior artisans, in line with the European bench-tradition the atelier originates from.
7. Environmental footprint
We do not currently claim to be carbon-neutral. We do:
- Prefer recycled gold and platinum when not committed to specific provenance
- Avoid plating chemicals that contain cyanide complexes where alternatives exist
- Use refillable polishing media and recover the resulting precious-metal dust
- Ship by sea where lead time allows; air freight is the exception, not the rule
8. Independent verification
Maisons, retailers and family offices may request a confidential audit of our sourcing documentation as part of partner due-diligence. We host such reviews at the atelier, with all relevant invoices and certificates available for inspection under NDA.
9. Reporting concerns
If you believe a sourcing claim on this page or in a Donati commission is inaccurate, please write to care@donatigioielli.net with subject "Provenance". We commit to investigate and respond within 30 days.
10. Updates
This statement is reviewed annually. The "Effective date" above reflects the latest review.
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