What is Hallmark Gold? A Hallmark in gold jewellery is a guarantee of purity and fineness of gold. It shows that the jewellery adheres to the international standards of purity. It safeguards the interests of buyers by helping them find if gold jewellery they are about to buy is fake or real.

The BIS hallmark is a hallmarking system for gold as well as silver jewellery sold in India certifying the purity of the metal.[1][2] It certifies that the piece of jewellery conforms to a set of standards laid by the Bureau of Indian Standards, the national standards organization of India.