Sergio Ragalzi ( 1951 - ) is an Italian painter. Sergio Ragalzi s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 716.39 USD for Meteorite in 2006 to 5748.64 USD for Corpus virus 1 - Corpus virus 2 in 2010 , based on the size and medium of the artwork.