Since 22 kt gold contains 91.67% pure gold, it is purer than 18 kt gold, which includes 75% pure gold. Additionally, 18k gold is more resistant to dents and wear than 22k gold since it is tougher and more durable. 22-karat gold can be used to create simple jewelry, but it cannot support the weight of jewels and diamonds in jewelry that is studded.
Therefore, it is advised to create jewelry with diamonds in 18K, while jewelry with gemstones in gold can be created in 22K, 18K, or lower, depending on the specifications.