Guide · Bullion Basics 6 min read
From Mine to Mint: Where the Spot Price Actually Comes From
It's one of the smartest questions a bullion buyer can ask: isn't the spot price just what the miners get for pulling the metal out of the ground?
It feels like it should be. But the spot price actually sits in the middle of the journey from mine to vault — not at the start. Understanding where it sits explains why miners receive less than spot, why you pay a little more than spot, and why both of those things are completely fair. Here's how the chain really works.
The short answer: spot is the price of refined metal
The spot price is the live global price for refined, investment-grade metal ready for immediate delivery. It isn't the price of ore fresh from the mine, and it isn't the price of a finished coin sitting in your hand. It's the value of pure, deliverable metal — the benchmark the entire market is priced around.
That single fact clears up most of the confusion around bullion pricing. Everything above and below spot makes sense once you know what spot itself refers to.
What "deliverable metal" actually means
For the global market to agree on one price, it needs one agreed product. That product is wholesale bullion meeting recognised "Good Delivery" standards — strict rules covering purity and weight. In broad terms:
- Gold: large wholesale bars of around 400 troy ounces (roughly 12.5 kg), at a minimum fineness of 995 parts per 1,000.
- Silver: bars of roughly 1,000 troy ounces (around 30 kg), at a minimum fineness of 999.
These big wholesale bars — not coins, not small bars — are what the spot price is built around. It's the value of pure metal in its most tradeable, deliverable form.
The three rungs of the pricing ladder
Once you know spot means refined metal, the whole supply chain falls neatly into three rungs.
Raw material from the mine
A mine doesn't produce pure metal. It produces ore, which is processed into a rough, semi-pure alloy known as doré. Doré still contains impurities and other metals, so it isn't investment-grade and can't be delivered as bullion yet. It changes hands at spot minus refining costs — the miner effectively receives the value of the contained metal, less the cost of getting it up to standard.
Refined wholesale bullion
A refiner takes that doré and purifies it into Good Delivery bars at investment-grade fineness. Now it's deliverable, and now it trades at the spot price. This is the rung the benchmark lives on, and it's the reference point every other price hangs off.
The finished product you buy
Mints and fabricators take refined metal and turn it into the coins, small bars and rounds people actually want to own. Those finished products sell at spot plus a premium, because real work and cost go into making them.
Why you pay a little above spot
If spot is the value of a giant 400-ounce wholesale bar, you can't exactly buy a tenth of one. Turning that refined metal into a one-ounce coin or a tidy small bar takes fabrication, minting, packaging, secure handling and distribution. The premium above spot covers all of that, plus the dealer's margin to operate and stand behind the product.
As a rule of thumb, smaller items carry a higher premium per ounce than large ones, because the fixed cost of making them is spread across less metal. None of this is a hidden markup — it's simply the cost of converting a wholesale benchmark into something you can hold.
What about copper and base metals?
Industrial metals follow the very same below-at-above logic; they just measure against their own standards. Copper, for example, is benchmarked on high-purity Grade A cathode traded on the London Metal Exchange, and it's quoted per tonne or per pound rather than per troy ounce. Mine output sits below that benchmark, refined cathode sits at it, and a finished copper bar or round sits above it. Different unit, identical principle.
What this means for you as a buyer
Here's the takeaway: the spot price is the shared, refined-metal benchmark that everyone in the market is measured against. The premium is the real-world cost of turning that benchmark into a finished, deliverable product in your hands. Miners receive spot-minus; you pay spot-plus; and the refined metal in between is the anchor for it all.
At Williams Bullion, we show live spot pricing across gold, silver, platinum and copper, so you can always see the benchmark — and exactly what you're paying above it. That's transparency you can hold.
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