Gold Purity

Carat:
Gold purity:

This chart shows some examples of the composition of various caratages of gold.

  Caratage Gold(Au) Silver (Ag)  Copper (Cu) Zinc (Zn) Palladium (Pd) 
Yellow Gold 9k 37.5% 42.50% 20%    
Yellow Gold 10k 41.70% 52% 6.30%    
Yellow Gold 14k 58.30% 30% 11.70%    
Yellow Gold 18k 75% 15% 10%    
Yellow Gold 22k 91.70% 5% 2% 1.30%  
White Gold 9k 37.5% 62.5%      
White Gold 10k 41.7% 47.4%   0.9% 10%
White Gold 14k 58.30% 32.20%     9.50%
White Gold 18k 75%       25% (or Pt)
White Gold 22k N/A N/A N/A N/A N/A
Rose Gold 9k 37.5% 20% 42.5%    
Rose Gold 10k 41.70% 20% 38.3%    
Rose Gold 14k 58.30% 9.2% 32.5%    
Rose Gold 18k 75% 9.2% 22.2%    
Rose Gold 22k 91.7%   8.40%