Humans have been mining gold for roughly seven thousand years. Every Egyptian pharaoh who was buried in it. Every Roman coin stamped from it. Every Spanish galleon that carried it across the Atlantic. Every Californian, Australian, and South African gold rush. Every central bank vault. Every wedding ring on every finger on Earth.
Add it all up. According to the World Gold Council — the industry's primary authority — the total gold mined in all of human history, as of the end of 2024, is approximately 219,890 tonnes.
Melt it all down — every bar, every coin, every necklace, every filling — and pour it into a mould. The resulting cube would measure roughly 22 metres (72 ft) on each side. About the height of a six-storey building. You could walk around it in 30 seconds.
That is all of it. Seven millennia of obsession, war, empire, and extraction — and it fits inside a building smaller than a typical apartment block.
For comparison, here is where that gold sits right now:
- Jewellery: 45% of all mined gold
- Central bank reserves: 17%
- Investment (bars, coins, ETFs): 22%
- Industrial (electronics, dentistry): 16%
- Olympic swimming pools it would fill: ~4.5
Because gold is virtually indestructible — it does not rust, corrode, or decay — almost all the gold ever mined still exists in some form. The ring on someone's hand might contain atoms that were once in a pharaoh's death mask. The gold in a circuit board might have been a doubloon. Nothing was lost. It just moved.
New mining adds roughly 3,000 tonnes per year — about 1.5% growth in the total above-ground stock. That slow, near-fixed supply is a large part of what makes gold valuable. Unlike paper currency, which central banks can expand at will, the gold supply barely moves.
The US Geological Survey estimates there are about 50,000 tonnes of known gold reserves still underground. If all of it were mined and added to the cube, each side would grow by only about 2 metres. The planet is nearly done giving us gold.
Seven thousand years of digging. A cube you could fit in a car park. That is the entire supply of the most coveted metal in human history.