Ewerdt Hilgemann ( 1938 - ) is a German painter. Ewerdt Hilgemann s works have been put up for auction numerous times, with realized prices surpassing estimated prices, varying from 2256.49 USD for Imploded Cube. in 2004 to 12257.09 USD for Kubusstruktuur nr. 107/K (negatief) (Cube Structure no. 107/K (negative)) in 2019 , based on the size and medium of the artwork.