His technique relied on the precise use of the burin to create sharp, definitive lines. Unlike the more fluid style of etching, Gaultier’s engravings possess a structural rigidity and clear definition of form. In his portrait Henri IV on Horseback, he captures the texture of armour and lace with mathematical regularity. His religious works, including The Last Supper and The Last Judgment, manage numerous figures within a small frame while maintaining legibility.

These prints appeal to modern buyers because of their graphic austerity. The stark black ink and white paper create a high-contrast aesthetic that suits interiors that favour graphic strength. Gaultier’s work offers a factual, unadorned look at the late Renaissance and early Baroque periods. His portraits and biblical scenes provide a sense of historical presence through their technical execution and formal composition.