Gold Price per Gram — How Your Offer Is Calculated
Per-gram gold prices change throughout the day. Here's how we link your offer to the live market across every common UK carat.
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The formula behind every per-gram offer
Every gold offer we make uses the same underlying calculation: weight in grams × purity (as a decimal) × current gold market rate per gram. The market rate moves through the trading day, so the figure quoted at 9am and 4pm can differ.
From that gross figure we apply the small adjustments needed to cover refining, processing, handling and market movement during settlement. We don't hide these — they're written into the itemised offer you see before accepting.
Because every carat has a different purity, the per-gram payout naturally varies: 9ct (0.375), 14ct (0.585), 18ct (0.75), 21ct (0.875), 22ct (0.916) and 24ct (0.999).
UK carat & purity reference
Each carat carries a fixed purity. Per-gram value is weight × purity × the current gold market rate, before refining and handling adjustments.
Multipliers shown are nominal purities. Indicative per-gram values follow the same multipliers when applied to the live 24ct market rate.
Worked example — illustrative only
How weight, purity & market rate combine
Gold is traded internationally in troy ounces (1 troy ounce = 31.1035g) and quoted in US dollars. UK customers almost always sell by the gram in GBP, so the spot price is converted through the live USD→GBP rate.
The per-gram value of an item is its weight × purity × the current 24ct rate per gram. Below is a clearly-labelled illustrative example only — not a current quote.
- Assumed 24ct market rate£60.00 / g
- Item weight10.0 g
- Carat & purity9ct (× 0.375)
- Gross metal value£225.00
- Refining & handling adjustmentshown on offer
For the current per-gram market reference, see the live gold prices page. The indicative figures shown there are reference values, not guaranteed offers.
Why the paid price differs from spot
What sits between the metal market and the paid figure
Refining cost
Items must be assayed and refined before re-entering the bullion market.
Handling & testing
Hallmark verification, electronic / XRF testing, weighing and itemising every piece take real time.
Insured logistics
Tracked and insured movement of items through the postal service or in-store back office.
Market movement during settlement
Spot can move between testing and final settlement; a small buffer protects both sides.
Frequently asked questions
Do you pay full spot price per gram?+
No reputable buyer pays the exact spot price — there are real refining and handling costs. We offer competitive market-based prices and show every figure clearly.
How often does the per-gram price change?+
The underlying gold market moves continuously during trading hours. We quote against the rate at the time of valuation.
Why are quotes from different buyers so different?+
Different buyers apply different handling margins and some quote a deliberately attractive headline figure they then reduce on arrival. We quote and pay the same number.
How do I check your per-gram offer?+
Take the weight, multiply by the purity decimal for your carat, then by the current gold spot rate per gram. Compare that with the itemised figure in your offer.
Related pages
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