22k gold consists of 22 parts of pure gold and 2 parts of other metals such as silver, zinc, nickel and other alloys.
This type of gold is commonly used in jewellery making in Southeast Asia, the Middle East and India.
22k gold is a little harder and more durable than 24k gold due to mixed metals. However, you should be aware that although this type of gold is suitable for plain gold jewellery, it is not preferable for diamond and heavily studded jewellery as it is not durable enough for harder gemstones.