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— Four material disciplines

Each category sourced, certified, and documented independently.

Diamond provenance differs structurally from coloured-stone provenance. We source and document each discipline on its own terms — mine origin, laboratory certification, and cut data disclosed at the collection level.

Extreme macro of a round brilliant-cut diamond on a white light table, studio strobe from above-left, internal fire and light refraction visible across the table facet, museum-gray negative space surrounding the stone
Extreme macro of a round brilliant-cut diamond on a white light table, studio strobe from above-left, internal fire and light refraction visible across the table facet, museum-gray negative space surrounding the stone
Extreme macro of a cushion-cut Ceylon sapphire on a white light table, controlled raking studio light revealing velvety blue saturation and silk inclusions, white negative space dominating the frame
Extreme macro of a cushion-cut Ceylon sapphire on a white light table, controlled raking studio light revealing velvety blue saturation and silk inclusions, white negative space dominating the frame
Overhead flat-lay macro of a high-purity gold specimen on a museum-gray surface, studio north light revealing crystalline grain structure and surface texture, minimal props, generous negative space
Overhead flat-lay macro of a high-purity gold specimen on a museum-gray surface, studio north light revealing crystalline grain structure and surface texture, minimal props, generous negative space
Extreme macro of a native silver wire crystal cluster on a white light table, controlled studio strobe revealing metallic luster and dendritic growth structure, neutral white negative space surrounding the specimen
Extreme macro of a native silver wire crystal cluster on a white light table, controlled studio strobe revealing metallic luster and dendritic growth structure, neutral white negative space surrounding the specimen
/ Current holdings

Stone categories in active inventory

Diamonds
Sapphires & Coloured Stones
Gold
Silver

Type IIa, GIA-certified, traceable mine origin

Alluvial and reef-origin, assay-documented

Native crystal specimens, mine-locality documented

Origin-tested, Gübelin and AGL certified

Yukon, West African, and Australian river-source material. Purity verified by independent assay. Natural crystalline specimens held separately from investment-grade refined material.

Kongsberg and Cobalt district native silvers alongside investment-grade refined material. Locality and mineralogy documented to collector standards. Each specimen photographed before transfer.

Botswana and Canadian pipe-sourced. Cut grades D–G, internally flawless to VS1. Each stone carries a GIA grading report with full provenance chain from rough to polished.

Ceylon, Kashmir, and Mogok ruby origins. Colour and saturation graded against reference standards. No heat treatment unless fully disclosed with laboratory confirmation.

Inventory depth is bounded by what we can authenticate — not by what the market supplies. A stone without a complete origin-to-certification chain does not enter our holdings, regardless of grade.

▸ Inventory discipline

Authenticated holdings only

This structural scarcity is deliberate. Collectors who inquire find specific stones with complete documentation — never a category placeholder awaiting sourcing.

Inquire About Availability

Begin with the stone. We supply the documentation.

Describe the origin, grade, or category you are researching. We will match your criteria against current authenticated holdings and respond with specific stone data.