What 18K means
18K gold contains approximately 75.0% gold, with the remainder made up of alloy metals. It is commonly associated with modern fine jewellery. Actual jewellery purity should be professionally verified.
Gold purity guide
18K Gold
Understand 18K gold purity, common uses and how its reference rate relates to today’s 24K gold rate.
How the rate is calculated
The indicative 18K rate is derived from the centralized 24K reference rate according to gold content. A final jewellery valuation also depends on tested purity and net gold weight after non-gold materials are accounted for.