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. Please note the net weight of the gold in this necklace is 2.8 Gms and the gross weight is 33.46 Gms which includes the weight 30.66 Gms of Wax and Thread.