Yellow Gold
Yellow gold is an alloy made of a mixture of pure gold and either zinc and copper. The higher the karat amount, the more pure the gold.
Make a fashion statement with yellow gold:
It looks great when paired with other warm colors like red, orange and brown. Wearing yellow gold jewelry with cooler colors like blue and purple can also work well, but you need to make sure that there is sufficient contrast.
Yellow gold is a great choice for people with warm skin. The golden hues of yellow gold complement the golden tones of warm skin. Most warm skin tones also look great in rose gold, which has a similar effect, as well as offering an injection of pink that can brighten up a yellowish complexion.
Mohs hardness level: 2.8 for 18kt, 3.5 to 4 for 14kt