Gold Color Alloys

Gold color is created by mixing in other various elements with gold to create a gold alloy with various colors. No matter which gold color is created, the pure gold is always present in the correct percentage. For example, 18K gold will always have 75% pure gold contained in the jewelry, while the rest of the alloy colors can be altered to create a different color. One color for example is the popular white gold. It is created by mixing in nickel to give it a whiter appearance. For more information regarding the percentages and elements used, see the chart below.

Commonly used alloys for Yellow Gold, White Gold and Rose Gold

% Composition	Au Gold	Ag Silver	Cu Copper	Zn Zinc	Ni Nickel	Ti Titanium	Pd Palladium	Fe Iron	Si Silicon	B Boron	Co Cobalt
Yellow Gold
23 karat	99.0*						0.8-1.0
18 karat	75.00	13.00	12.00
	75.00	15.00	10.00
14 karat	58.33	4.00	31.24	6.43	0.10			0.05	0.01
	58.33	24.78	26.75	0.14
10 karat	41.70	11.66	40.81	5.83					0.03	0.02
	41.70	5.50	43.80	9.00
White Gold
18 karat	75.00		2.23	5.47	17.80
18 karat **	75.00	15.00					10.00
14 karat	58.33			28.32	4.80	8.55
14 karat **	58.33	32.17					9.50
10 karat	41.66		29.15	12.12	15.05						1.97
10 karat **	41.70	47.42		0.88			10.00
Rose Gold
18 karat	75.00	5.00	20.00
14 karat	58.33	2.08	39.59
10 karat	41.70	2.82	55.48

* Represents minimum
** Experimental, nickel-free