Thanks to Kathleen Maxwell for bringing to my attention the Database of Armenian Manuscript Illuminations, the first part of the Index of Armenian Art.
This database features a chronological database of Armenian manuscripts, including color images. So far there are 55 illuminated Armenian MSS ranging from ca 600 C.E. to the 13th century. Among these treasures are the Etchmiadzin Gospels (late 6th - early 7th cent.) with the final four miniatures and the beautiful book covers.