(σφραγίς/sphragís, literally Seal).
 Seal (stone)
Seal (stone): precious or decorative stone with intaglio engraving, signet ring, seal (impression). On 2nd-4th cent. AD magical amulet gems from Roman Egypt there is often mention of the demon-averting seal of Solomon and, connected with Solomon motifs, the Seal of God (sphragìs theoû).
S. Michel, Die magischen Gemmen im Britischen Museum, 2001, …