/ Mineralogical Standards

Certified origin and loupe-inspected fidelity.

Every specimen undergoes ten-power examination to verify internal growth structures, pleochroism, and optical symmetry before accessioning into our permanent inventory.

Four-Stage Protocol

Rigorous gemological verification

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02
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Parcel Receipt

Microscopic Scan

Refractive Testing

Document Archive

Direct custody from artisanal lapidaries in Sri Lanka, Madagascar, and Colombia with intact provenance logs.

Ten-power magnification screening to isolate inclusions, growth zoning, and surface diffusion treatments.

Precision hydrostatic weighting and optical index confirmation using sodium vapor refractometers.

Issuance of verifiable mineralogical dossiers detailing exact carat weight, dimensions, and cut symmetry.

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Bench Precision

Table cut symmetry and uncompromised fire

We reject synthetic simulants, surface diffusions, and undisclosed thermal enhancements in favour of raw natural corundum shaped to optimal optical angles.

Our direct partnerships with cutting benches ensure that each stone retains its authentic weight and mineralogical identity without commercial compromise.

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Commission a bespoke gemstone selection

Connect with our London curators for private viewings or tailored stone acquisition briefs.