This bar is made of 22k (916) yellow gold. this 5 gm gold bar comes with bis hallmark.bis hallmark is not a separate certificate, it is an inscription made on the product.the product is 2.29 cm in length and 1.4 cm in width.the product will be an excellent pick for you. this is stylish, trendy and classy. it is safely packaged for your convenience, protecting it from damages.