What is 18ct gold?
18ct gold is an alloy that contains 18 parts gold to 6 parts other metals, equal to 75% pure gold by weight.
18ct gold
18ct Gold Price Calculator
18ct gold contains 75% pure gold. Use this calculator to estimate the value of 18ct gold rings, chains, bracelets and watches using live UK gold prices.
Gold value calculator
18ct gold value calculator
Enter a weight to see your estimated gold value.
This estimate is for guidance only and is not a guaranteed buy price. Final offers depend on testing, purity, item weight, condition, stones, non-gold parts, buyer margin and market movement.
Live gold price reference
Prices are market references only and are not guaranteed buy prices.
Gold price per gram (24ct)…
Gold price per troy ounce…
9ct gold price per gram…
14ct gold price per gram…
18ct gold price per gram…
22ct gold price per gram…
24ct gold price per gram…
Why 18ct is worth more than 9ct
Each gram of 18ct contains roughly twice as much pure gold as 9ct, so the market metal value per gram is higher.
Where to sell after checking the price
Once you have a guide value, compare trusted gold-buying options.
HighStreetGold
Best for: Postal gold packs
Request a postal gold pack and send your items to HighStreetGold headquarters for a clear valuation before deciding whether to sell.
Sell Gold by PostSt Helens Gold
Best for: Face-to-face gold valuations in St Helens
Visit St Helens Gold inside Cash Generator St Helens for a local in-person gold valuation.
Sell Gold in St HelensBirkenhead Gold
Best for: Upcoming Wirral and Birkenhead gold-buying location
Birkenhead Gold is an upcoming local gold-buying location for Birkenhead, Wirral and surrounding areas.
Visit Birkenhead GoldGold Pricer may link to selected gold-buying services connected to our wider network. Always check the buyer’s terms, valuation process and offer before selling.