The Grimbald Gospels has initials illuminated in gold throughout.[1] Although silver was extensively used, it has mostly oxidized to silver glance. There are rubrics in red and blue ink and in gold. The manuscript has been analyzed by Raman microscopy and the following pigments identified: iron gall, lazurite, red lead, white lead, verdigris, orpiment, indigo and carbon.[3]
Matthew, Luke and John have full-page evangelist portraits and their gospels begin with large decorated incipits in full-page borders. These features are missing for the gospel of Mark.[1] Since the portraits appear on the verso (back) of one leaf and the incipits on the recto (front) of the following leaf, these are double-page decorations.[2] The portraits are distinctive for the plain background enclosed by an ornate border. The composition of the border of John's portrait is especially unusual.[3] It contains images of the Trinity, the apostles, cherubim, kings, clergy and the souls of the dead.[2][3] The frame of John's incipit contains a Madonna and Child. The Matthew and Luke borders are filled with acanthus in the "Winchester style".[3]