The cost of a real Ulfberht sword varies widely depending on its authenticity, craftsmanship, materials, and historical significance. Museum-quality replicas and handmade versions can range from a few hundred to several thousand dollars. Original Viking-era Ulfberht swords are extremely rare and can be worth tens of thousands of dollars or more at auction. Collectors value these legendary blades for their advanced metallurgy, historical importance, and connection to the Viking Age.