A genuine Ulfberht sword is exceptionally rare and valuable due to its historical significance and superior craftsmanship. Authentic Viking-era blades that bear the “+ULFBERHT+” inscription can fetch high prices among collectors, museums, and enthusiasts. Depending on condition, provenance, and authenticity verification, original Ulfberht swords may sell for tens of thousands to hundreds of thousands of dollars at auction or through specialist dealers, reflecting their scarcity and cultural importance.