Free precious metal calculator
Understanding Gold Purity and Karats
Gold purity tells you how much fine gold is inside an item. Karat has a direct effect on melt value.
Karat basics
24K is nearly pure gold, while 18K is 75 percent gold, 14K is about 58.3 percent gold, and 10K is about 41.7 percent gold.
Why it matters
Two gold items can weigh the same but have different values if their karat is different.