The purity of solid gold is measured in karats. Higher karats indicate more gold content but a softer metal.
: Solid gold can be yellow, white, or rose, depending on the other metals in the alloy (e.g., more copper creates rose gold). matures gold
: 99.9% pure gold. While it is the "purest," it is generally considered too soft for most jewelry items. Solid Gold vs. Other Gold Types The purity of solid gold is measured in karats