How is the purity of gold defined?
The gold's purity is measured in Karat and mostly categorised as 24, 22, 10, 14, 10 karats. A 24 Karat gold piece is comprised of 100 per cent gold and there is no alloy mixed into it. ... So, if your gold chain has "18K" marked onto it, this means that piece contains 18 parts gold and 6 parts of other metals.
