A huge gold bar is on display in a case inside a large vault

Collection

World's Largest Gold Bar

A feat of refining excellence

The Perth Mint

You're looking at a record-breaker. On 9 July 2026, this gold bar earned the GUINNESS WORLD RECORDS title for the Largest Bar of Gold.

It was cast at The Perth Mint Refinery and weighed in at 521.2 kilograms, surpassing the previous record of 300 kilograms.

Two men in and industrial factory stand behind a large weighing scale where an enormous gold bar is positioned — GUINNESS WORLD RECORD Adjudicator Marc Cote and The Perth Mint CEO Paul Graham at the official weighing of the gold bar The Perth Mint

GUINNESS WORLD RECORDS Adjudicator Marc Cote and The Perth Mint CEO Paul Graham at the official weighing of the gold bar.

Credit: The Perth Mint

In preparation, about 1.5 tonnes of raw material was refined into a series of large gold bars.

Six large gold bars weighing 85kg each are positioned on an electric trolley — Six ~85 kilogram 99.999 pure gold bars The Perth Mint

Six ~85kg gold bars of 99.999% purity used to create the World's Largest Gold Bar

Credit: The Perth Mint

To make the world record bar, six large bars and several smaller bars were loaded into a specially designed mould.

Two workers in an industrial factory use a vacuum lifter to lower a large gold bar into a mould — Lowering one of six ~85kg gold bars into the mould to create the World's Largest Gold Bar The Perth Mint

Lowering one of the six ~85kg gold bars into the mould for the 500kg bar

Credit: The Perth Mint

The gold was heated to about 1,400 degrees Celsius in our Flameless Casting Chamber. After many hours of controlled cooling, the World's Largest Bar of Gold emerged.

A group of workers in an industrial factory watch as a large mould emerges from a tunnel-like machine called a Flameless Casting Chamber — The 500kg gold bar emerges from the Flameless Casting Chamber at The Perth Mint Refinery The Perth Mint

The record-breaking gold bar emerges from the Flameless Casting Chamber.

Credit: The Perth Mint

More than 35 specialists from our Refinery and Assay Laboratory contributed their expertise to plan and produce our half-tonne gold bar. it is one of the most significant technical achievements in The Perth Mint's recent history.