22 Karat gold contains 91.6% gold and 8.4% other metals. What is 22 Karat gold commonly known as?

999, BIS, Pure Mark

750, Platinum, ISO

916, KDM, Hallmark

585, Copper, Jewel Mark

22-karat gold, which contains 91.6% pure gold and 8.4% other metals like copper and silver,

It is commonly called "916 gold" or "22K gold" and is typically identified by a hallmark stamp indicating its purity.

Hallmark:

This is a mark stamped on gold jewelry that verifies its purity and authenticity

KDM:

This term refers to a specific soldering process used in gold jewelry