Patrimonio Ediciones is the only company in the world that uses genuine gemstones -not synthetic- and fine gold, which is why we are the only company that notarizes it through laboratory analysis. Demand the certified document of laboratory analysis of gold and its percentage of purity applied to its folios, in addition to gemological for precious stones. Immediately after the prepublication is finished, we deliver the facsimile together with the volume of comments made by the most prestigious specialists in the field; being the only Spanish company that uses velvet of natural silk , not synthetic or cotton.