With which metals is gold commonly alloyed for jewelry?

Gold is commonly alloyed with metals like silver, copper, and zinc to enhance its properties for use in jewelry. The alloying process allows for the modification of color, strength, and durability of gold, which is particularly important since pure gold (24 karats) can be too soft for practical use in jewelry.

Silver and copper are frequently used; they not only alter the color of the gold but also increase its hardness, making the jewelry more suitable for everyday wear. For instance, when copper is added, the result is often referred to as rose gold due to its reddish hue. Zinc can also be included in certain alloys to contribute to a lighter color and additional strength.

In contrast, pure gold is valued for its pristine quality and resistance to tarnishing but lacks the required toughness for items that are frequently handled. Therefore, the combination of these metals in jewelry crafting creates a balance of beauty and functionality.