What does 822 mean on gold jewelry?

The number 822 on gold jewelry indicates that the piece is made of 82.2% gold, which is equivalent to 19.7 karats. This means that the jewelry is composed of 22 parts gold out of a total of 24 parts, reflecting its purity. It's important to note that this marking is less common than other standards like 14K or 18K, which are more frequently seen in gold jewelry.