The Second category is 22k gold that contains 22 parts gold and 2 parts of additional metals, making it 91.6 per cent gold.
It's popularly referred to as 916 gold.
Then there is 18k gold. It has 18 parts gold and 6 parts of one or more additional metals, making it 75 per cent gold.
The prices are decided according to the purity of the metal.
Nowadays, most ornaments are made with 18k gold as it is relatively more durable against daily wear and tear, especially if it is studded with diamonds or gemstones.
