A female mining engineer wearing a white hard hat, safety glasses, and high-visibility yellow and navy clothing, smiling and holding a two-way radio under a clear blue sky at Bellevue Gold Mine
A female mining engineer wearing a white hard hat, safety glasses, and high-visibility yellow and navy clothing, smiling and holding a two-way radio under a clear blue sky at Bellevue Gold Mine
Aerial overhead shot of an industrial staging ground featuring wind turbine blades, tower sections, red structural steel framing, and heavy vehicles on red earth, highlighting sustainable net-zero energy infrastructure.
Aerial overhead shot of an industrial staging ground featuring wind turbine blades, tower sections, red structural steel framing, and heavy vehicles on red earth, highlighting sustainable net-zero energy infrastructure.

Materials

Materials

Provenance informs creation.

Provenance informs creation.

At 12, every piece begins with an origin. 

At 12, every piece begins with an origin. 

The Source
The Principle

The Source

Provenance begins before a material enters the 12 atelier.

The Source
The Principle

The Source

Provenance begins before a material enters the 12 atelier.

Panoramic view of Bellevue Gold Mine processing facility in Western Australia illuminated under a vibrant pink and orange sunset sky.
Bellevue Gold Mine, Western Australia
Bellevue Gold Mine, Western Australia

Single Mine Origin Gold

Gold sourced through the SMO system allows every 12 creation to be traced to its geological origin.

Each finished work is accompanied by a verified provenance record allocated to a specific gold mine.

Each finished work is accompanied by a verified provenance record allocated to a specific gold mine.

aerial view of village on mountain cliff during orange sunset

Gold Standard

Our gold is sourced from a single verified mine only.

Our gold is sourced from a single verified mine only.

Net Zero

Bellevue became the world’s first gold mine to achieve net-zero onsite Scope 1 and 2 emissions, ahead of its 2026 target.

Lineage

Lineage

Each 12 creation can be traced back to the exact mine from which its gold originates through a documented chain of custodial practices.

A metallurgist wearing a full silver thermal heat-shield suit and helmet pouring incandescent molten gold down a vertical cascade of ingot molds inside an industrial facility.

Transparency

An independent dataset tracks environmental and ethical performance directly at the mine level.

Twelve Tonnes

In 2025, sales of SMO gold reached over £1.4 billion, with mines generating twelve tonnes of responsibly sourced gold globally.

Each 12 creation is accompanied by precise documentation, verifying the origin and transit route of the gold to your hands.

X-ray image of a human knee joint on a dark blue field, featuring caption text introducing "AgAIN Silver" sourced from reclaimed medical X-ray films.

Silver Reborn repurposes reclaimed X-ray material for contemporary creative industries.

Drawn from medical and historical archives, innovation and ecological responsibility move in tandem.

X-ray image of a human knee joint on a dark blue field, featuring caption text introducing "AgAIN Silver" sourced from reclaimed medical X-ray films.

Silver Reborn repurposes reclaimed X-ray material for contemporary creative industries.

Drawn from medical and historical archives, innovation and ecological responsibility move in tandem.

From Origin to Form

“Before each piece comes to life, it holds an inherent truth. Before materials become jewellery, they carry a responsibility.”

SHAUN LEANE

Studio photograph of multiple polished 9999 fine gold bullion bars ranging from 1 gram to 1 kilogram, neatly arranged against a sleek black reflective surface. Each bar is stamped with the "SMO" logo, weight, and purity mark.
A high-contrast shot of a polished 1kg fine silver ingot engraved with "Betts 1760 Fine Silver 999," surrounded by scattered silver casting granules on a dark surface.
The Source

The Source

Provenance begins before a material enters the 12 atelier.

Traceability

Traceability

Fine materials are defined not only by what they are, but by their origin and what that represents.

Purity

Purity

Provenance is encapsulated within every finished piece as a form of material accountability.

Single Mine Origin Gold

Gold sourced through the SMO system allows every 12 creation to be traced to its geological origin.

Each finished work is accompanied by a verified provenance record allocated to a specific gold mine.

Single Mine Origin Gold

Gold sourced through the SMO system allows every 12 creation to be traced to its geological origin.

Each finished work is accompanied by a verified provenance record allocated to a specific gold mine.

Bellevue Gold Mine, Western Australia

Gold Standard

Our gold is sourced from a single verified mine only.

Net Zero

Bellevue became the world’s first prominent gold mine to produce net zero gold, reaching its target of net zero Scope 1 and Scope 2 emissions ahead of schedule.

Lineage

Each 12 creation can be traced back to the exact mine from which its gold originates through a documented chain of custodial practices.

Transparency

An independent dataset tracks environmental and ethical performance directly at the mine level.

Twelve Tonnes

In 2025, sales of SMO gold reached over £1.4 billion, with mines generating twelve tonnes of responsibly sourced gold globally.

SMO Certification

Each 12 creation is accompanied by precise documentation, verifying the origin and transit route of the gold to your hands

AgAIN Silver

Silver Reborn repurposes reclaimed X-ray material for contemporary creative industries.

Drawn from medical and historical archives, innovation and ecological responsibility move in tandem.

AgAIN Silver

Silver Reborn repurposes reclaimed X-ray material for contemporary creative industries.

Drawn from medical and historical archives, innovation and ecological responsibility move in tandem.

From Origin to Form

“Before a piece carries form, it carries truth.

Before it becomes jewellery, it becomes responsibility.”

“Before each piece comes to life, it holds an inherent truth.  Before materials become jewellery, they carry a responsibility

“Before each piece comes to life, it holds an inherent truth.  Before materials become jewellery, they carry responsibility.”

SHAUN LEANE

SHAUN LEANE

SHAUN LEANE

From Origin to Form