Pier Celestino Gilardi ( 1837 - 1905 ) was an Italian painter. Pier Celestino Gilardi s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 2000 USD for The connoisseurs in 2005 to 3992.83 USD for The connoisseurs in 2007 , based on the size and medium of the artwork.