The following objects have been referred to as the Fire Emblem in their respective games:
The Shield of Seals - A shield in Shadow Dragon and the Blade of Light, its sequel Mystery of the Emblem, and their respective remakes Shadow Dragon and New Mystery of the Emblem. Also known as the Pedestal of Flames in Awakening.
Fire Emblem (crest) - The crest of the Velthomer house in Fire Emblem: Genealogy of the Holy War and Fire Emblem: Thracia 776.
Fire Emblem (seal) - The Imperial Seal of Bern in Fire Emblem: The Blazing Blade and Fire Emblem: The Binding Blade
The Sacred Stone of Grado - The initial form of Grado's Sacred Stone in Fire Emblem: The Sacred Stones, which would later be split in two, with one half becoming the Dark Stone.
Lehran's Medallion - The medallion that seals Yune in Fire Emblem: Path of Radiance and Fire Emblem: Radiant Dawn
Omega Yato - Final form of the Yato blade in Fire Emblem Fates. It is also referred to as the "Seal of Flames".>The Opera of Light - An operatic ritual in Tokyo Mirage Sessions FE required to counter the Opera of Shadows.
Yep, still Fire Emblem.