
Responsible Sourcing
Beauty with a clean conscience.
The rarest thing about a SimStar diamond is not its size or its color — it is knowing exactly where it came from.
Kimberley Process
Every rough parcel we purchase carries Kimberley Process certification. No exceptions, no grey channels — our rough enters the factory conflict-free and fully documented.
RJC Code of Practices
SimStar is audited against the Responsible Jewellery Council's standards covering human rights, labour conditions, environmental impact and business ethics.
Chain of Custody
From the mining company's tender room to the client's vault, each stone's journey is recorded. Buyers of significant stones receive the full provenance file.
Community & Environment
We buy from producers who invest in their communities and rehabilitate their landscapes — because a beautiful stone should not have an ugly history.
From Mine to Market
A documented journey, every time.
6 offices · 4 continents

