Knowing where it comes from
A stone does not tell you where it comes from.
Provenance begins at the moment of extraction.
We work one quarry at a time, so the extraction date tells which quarry each piece came from. When we record it, the piece gets its code.
From then on, that record stays with it.
PIECE · QUARRY · DATE · RECORD
Why documentation matters
The geographic origin of an amethyst cannot be determined simply by analyzing the stone. That is why provenance is built through documents: who extracted it, where and when.