All gold jewellery at Gehna Jewellers is BIS hallmarked. It certifies that the piece of jewellery conforms to a set of standards laid by the Bureau of Indian Standard, the national standard organization of India. All jewellery is 916 hallmarked that would certify to a purity of 916 per thousand, that is 91.6%, translating to a 22 carat purity of gold. Additionally, each piece is accompanied by our in-house certificate clearly stating the net weight and description of the piece.