14K gold is an alloy made up of 58.3% pure gold and 41.7% other metals, such as copper or silver. The "14K" designation indicates that out of 24 parts, 14 are pure gold. This composition gives 14K gold a good balance of durability and beauty, making it a popular choice for jewelry. Due to its lower gold content compared to 18K gold or 24K gold, 14K gold is more affordable and resistant to scratching and tarnishing. It is available in various colors, including yellow, white, and rose, depending on the metals used in the alloy.