what is the alloy in yellow gold
Yellow Gold. The alloys that are most commonly added to create 22kt yellow gold are silver (5%), copper (2%) and zinc (1.33%). This unique mixture of pure gold, silver and copper gives yellow gold itâs distinct color. 18kt yellow gold will have a different percentage combination of the added alloys.ose gold is a mix of pure gold and copper alloy and it is commonly used for specialized jewelry. Rose gold, also known as pink gold and red gold, was popular in Russia at the beginning of the nineteenth century, and was also known as Russian gold although this term is now obsolete.