Pure gold, also known as 24-carat gold, is very soft and malleable. Therefore, for jewelry making, it's usually alloyed with other metals like copper or silver to enhance its strength and durability.
The 21K gold is not only purer but softer as well. 21K gold is specially used in jewelry. Also the word “Karat” and “Carat” are similar and use to measure the weight of metals like gold, diamond, and ...