dactylioglyph A dactylioglyph is someone who engraves gems for rings or ornaments. It can also refer to the engraving itself, especially if it’s on a ring. I believe it originates from Greek words for “finger” and “engrave,” and is closely related to concepts like fingerprinting (dactylography) and finger spelling (dactylology), but refers in this case specifically to gemstone artistry.