Data Source
Live spot gold prices are sourced from goldapi.io, queried in GBP against the XAU (gold) symbol. This is a live wholesale/interbank-style spot price, not a retail dealer quote.
Update Frequency
The price is refreshed three times per day via an automated job. Every page always shows the exact "Last refreshed" timestamp of the data currently displayed. If the live feed is temporarily unavailable, the site falls back to the last known price and shows a clear "using cached rate" banner rather than a broken or zeroed page.
Calculation Formula
price_per_gram(purity) = price_per_gram(24k) × purity_fraction
scrap_estimate(purity) = price_per_gram(purity) × dealer_discount_factor
Purity Fractions Used
| Purity | Hallmark | Fine gold fraction |
|---|---|---|
| 24 Carat | 999 | 1 |
| 22 Carat | 916 | 0.9167 |
| 21 Carat | 875 | 0.875 |
| 18 Carat | 750 | 0.75 |
| 14 Carat | 585 | 0.585 |
| 9 Carat | 375 | 0.375 |
Scrap / Dealer Discount
The scrap gold estimate applies a configurable discount factor (currently 0.85) to the live per-gram price. This is explicitly an estimate, not a market rule — real dealer offers vary by purity, weight sold and the individual dealer. Always get a real quote before selling.
Who Runs This Site
Gold Price Per Gram UK is an independent calculator site. It is not a dealer, refiner or financial adviser, and prices shown are indicative only — always confirm with a dealer or jeweller before any transaction.