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Grey Gold

gray gold | ˈgrā gōld

noun

Gold which contains a high proportion of iron

Grey gold is the result of a naturally high proportion of iron, or it can be resultant from a man-made alloy of gold and palladium. As an alternative to palladium, grey gold may also be made with silver, copper or manganese. Grey white gold is made with a mixture of 75% gold, 17% iron and 8% copper, and is used to acquire a certain color for accenting in jewelry. Other alloys that use copper or iron include blue-white or blue gold, rose gold, light green gold, and green gold that is not naturally occurring (alloyed with copper).