Every stone has a documented history before it reaches you.
Mine traceability, independent laboratory certification, and a complete acquisition file accompany every stone Caratlinestones holds.
Three documented stages, no gaps.
Origin & Source Traceability
Independent Laboratory Certification
Acquisition File Transfer
Each acquisition begins with mine-of-origin documentation: conflict-free sourcing declarations, export certificates, and a verifiable chain-of-custody record before the stone enters our review.
Every stone is submitted to a named gemological laboratory — GIA, Gübelin, or AGL — for grading and origin determination. No stone enters inventory without a current, signed laboratory report.
At transaction close, the complete acquisition file — origin records, laboratory certificate, and independent appraisal — transfers with the stone. The documentation does not remain with us.
Certification by GIA, Gübelin, and AGL.
We accept grading reports from three institutions recognized by the international collector and institutional market. No house certificates, no in-house grading — named third-party documentation only.
Each report specifies origin determination, treatment disclosure, and the grading methodology applied. Where origin is inconclusive, that uncertainty is stated explicitly in the acquisition file.
The file is the stone's permanent record.
Origin export certificate, conflict-free declaration, named laboratory grading report, and a current independent appraisal. These four documents constitute the acquisition file and leave with every stone.
Buyers requiring additional due diligence — insurance valuations, estate documentation, or jurisdictional import records — can request supplementary appraisals at the inquiry stage.