These 1 gram Istanbul Gold Refinery Bars come to you in beautiful, dark blue assay cards with attractive Gold lettering. The front of the bar depicts "IGR" inside an oval and showcases the weight of "0.5 g" and purity ".9999". The back of the bar is tectured with "IGR" in a diagonal fashion. A unique serial number can be found on the side of the assay card which certifies the authenticity of each 1/2 gram Istanbul Gold Refinery Bar. The back of the assay card also restates the weight and purity.