Gold has been used to create jewelry for centuries and is valued for its beauty, strength and malleability. Gold will never tarnish, rust, or corrode. While naturally yellow, various alloys are commonly added to gold to create white gold and rose gold. Gold is commonly measured by karat for jewelry:
24 karat = 100% gold Too soft for jewelry

22 karat = 91.7% gold Very soft, rarely used for jewelry

18 karat = 75.0% gold Recommended for jewelry

14 karat = 58.3% gold Recommended for jewelry

10 karat = 41.7% gold The legal minimum karatage considered real gold in the US



See also : Gold Education, Rose Gold, White Gold, Karat