Purity of Gold


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Purity of Gold

3 August 2016
What is a Karat?

Karat is a measure of the purity of gold, abbreviated as K. As pure gold is very so and cannot be used to make jewellery, metals like copper and silver are added to strengthen it. Karat measures the percentage of pure gold in the alloy


22 karat gold is 91.6% gold which means that 22 parts of it are pure gold. The highest quality of gold jewellery is made of 22 karat gold and has a shiny yellow luster, the brightness of which depends on whether the other 2 karats are made from silver or copper. The best quality of 22 karat gold is alloyed with silver and is considered to be the most expensive.


18 karat gold is 75% gold, i.e. 18 parts of it are pure gold.