The purity of gold is measured in karat. The higher the karat, the purer the gold. Gold in its purest form is too soft and is not durable. Hence, gold is mixed with different alloys to make it more durable. The common alloys used are copper and silver.

Twenty-four karat is the purest gold. An 18-karat gold jewelry is the more popular choice because it can be worn everyday and is durable enough. It is made of 18 parts gold and A 10k gold ring, on the other hand, is made of 10 parts gold and 14 parts alloy. Ten karat is a popular choice for rings because it is more resilient to wear and tear.