The Portland Vase, £5.00
Height: 48.000 mm
Width: 58.000 mm (crystal)
Blacas Collection 739
M&ME Dalton 787 (1867,5-7,739)
Room 46: Europe 1400-1800
The Punishment of Tityus, a rock crystal intaglio by Giovanni Bernardi
Italy, around AD 1530
This rock crystal intaglio depicts the
punishment of Tityus, a giant in Greek mythology who tried to rape
the goddess Leto and was banished by
The gem was engraved by Giovanni Bernardi da Castelbolognese (1494-1553), the design based on drawings made by Michelangelo for his friend Tommaso de' Cavalieri (now in the Royal Collection, Windsor Castle). Bernardi was famed for his work as a gem-cutter, specialising in rock crystal. The son of a goldsmith, he started work as a gem-cutter and medallist. Before 1530 he moved to Rome and worked under the patronage of Giulio de' Medici, Pope Clement VII (1523-34) and Cardinal Ippolito de' Medici (1511-35). He engraved this gem and two others for the Cardinal. It was much admired by the artist and historian Giorgio Vasari, when he saw it in the collections of Pier Luigi Farnese.
Engraved gems, both antique and contemporary, were highly prized by collectors during the Renaissance. Princely collectors competed to acquire the best collections, and gems were often traded and presented as gifts. Skilled gem-cutters were able to produce superb original pieces as well as reproductions of antique gems; these then became widely known through the use of prints and were themselves reproduced, as gems and as plaquettes.
C. Robertson, Il gran cardinale, Alessandro (New Haven and London, 1992)
D. Thornton, 'Valerio Belli and after: Renaissance gems in the British Museum', Jewellery Studies-3 (1998), pp. 11-20