virtu \vuhr-TOO; vir-\ (noun) - 1 : love of or taste for fine objects of art. 2 : Productions of art (especially fine antiques). 3 : Artistic quality.
'In the latter case, the new emblem held no personality or virtu until it had participated in noteworthy feats and so acquired status.' -- Jack Vance, 'Planet of Adventure'
Virtu comes from Italian virtù "virtue, excellence," from Latin virtus, "excellence, worth, goodness, virtue."