Stone & Shine
Precious metals

Metal prices, simply.

A simple reference for precious metal prices, purity marks, and how raw metal value is estimated.

April average prices

Month-to-date averages for April 2026, based on available published spot/history data checked on 25 April 2026.

Metal GBP avg / gram USD avg / gram
Gold£114.17$152.54
Silver£1.82$2.44
Platinum£49.17$65.69
Palladium£36.90$49.31

Figures are shown per gram for jewellery use. GBP figures are converted from USD using HMRC's April 2026 exchange rate of 1 GBP = 1.3361 USD. Suggested update rhythm: replace these with the previous month's final averages at the start of each new month.

What the price means

  • Metal prices are usually quoted per troy ounce, not a normal ounce.
  • One troy ounce is about 31.1035 grams.
  • Jewellery value also depends on purity, weight, condition, design, age, and resale demand.

Quick formula

To estimate raw metal value: metal price per gram x item weight in grams x purity percentage.

Example: 9ct gold is 37.5% gold. 18ct gold is 75% gold. Sterling silver is usually 92.5% silver.

Testing metal

  • Hallmarks are the first thing to check, but they can be worn, missing, or misleading on older pieces.
  • Acid test kits can help check gold and silver purity by comparing the reaction on a test stone.
  • Acid testing can mark jewellery if done directly on the item, so use care and avoid delicate or valuable pieces unless you know what you are doing.
  • For higher-value items, a jeweller or precious metal dealer can test with professional equipment.