Pure gold refers to a metal that is 99.9% gold, with no other alloys. It can also be referred to as 24kt gold or 999 gold.

Pure gold is notated as 24K – this is the highest karat level for gold meaning it is 100% pure gold. 18K gold is 75% purity level, 14K is 58.3% purity level, and 10K is 41.7% purity level.