Offered at a lower premium over the spot price than gold bullion coins, these gold bars provide investors with a convenient and cost-effective way to own this precious metal. Gold bars of this or larger sizes do offer an important investment advantage: they carry a low premium over spot gold. These 100 Gram gold bars, while they have the look of an industrial product, are engraved with a serial number, and are accompanied with an official PAMP certificate of assay with matching serial number.