What is 24 karat/carat gold?

          Pure gold is too soft to use in its purest form, it is usually combined with other metals. So the term “karat/carat” tells you the percentage of gold versus the percentage of other metals.In other words it is the unit of purity for gold.   

Karat and percentage of gold table:

Karat/Carat	% of gold
24	100
22	91.75
18	75
14	58.5
12	50.25
10	42
9	37.8
8	33.75