Geological Ledger

Alluvial provenance from Montana riverbeds

Every parcel is documented from initial gravel recovery to the Great Falls bench, ensuring complete chain-of-custody for ethical jewelers and collectors.

100%

alluvial origin

0

treatments applied

Extraction & Cutting

Four-stage lapidary process

01
02
03
04

Alluvial Recovery

Density Separation

Hand-Sorting

Bench Cutting

Sourcing unheated rough directly from historic Montana alluvial gravel deposits without chemical disruption.

Sorting raw parcels by specific gravity to isolate stable almandine-pyrope crystal structures.

Inspecting every stone on the Great Falls bench for inclusions, fractures, and optimal optical clarity.

Faceting stones on dedicated laps calibrated to maximize natural refractive indices and carat yield.

Integrity Standard

Unheated stones and rigorous geological transparency rejecting chemical fillers and synthetic substitutes.

Assay Verification

Strict refractive index verification guarantees that each almandine-pyrope maintains its native crystal integrity from rough parcel to finished facet.

Great Falls Lapidary Bench

Request full regional provenance documentation

Contact our bench directly for trade orders, custom lapidary cutting specifications, and raw mineral parcel availability.