GUERLAIN 4.2 oz. Aqua Allegoria Pera Granita Eau de Toilette The Fresh Fragrances Collection. What It Does Pera Granita belongs to the Aqua Allegoria collection, the first collection of intensely fresh fragrances in perfumery created in 1999. On the strength of the Guerlain Perfumer’s expertise dating back to the legendary Eau de Cologne Impériale in 1853, the Guerlain Perfumer creates each of the Aqua Allegoria with the freshness of a Cologne and the hold of a Guerlain perfume.