This gold necklace for women is set in 22k gold, verified by BIS hallmark. BIS hallmark is NOT a separate certificate, it is an inscription made on the product. This 22kt gold necklace is made to order jewellery and it usually requires 15-18 workings days to get ready to ship. The weight mentioned are estimated weight and the final weight may vary and a differential amount would be applicable accordingly. The length of the gold necklace is 6 inches and comes with adjustable dori attached. The images displayed are zoom-in images (10x-zoom), the product will be of standard size. The item will be delivered to you in a tamperproof package. Please inspect the package for any tampering before accepting the delivery.