The Mariani crystal cutting workshop in Via dell'Orto, became Mariani e Locchi in the 1920s when Italo Locchi joined the business. Initially the firm made cut and engraved glassware for the grand hotels and ocean liners, then it turned to a private clientele, reproducing models and making replacement pieces for the grand service used by the Florentine nobility.
When the founder Mariani retired, the wordshop was transferred to its current location in 1955.
Upon Italo's death in 1964, his daughter-in-law Paola Vannoni Locchi, had to take over and she manages the business even today, with her daughter-in-law, Giovanna, and four outstanding artisans.