How much does an authentic Katana cost? complete price guide
Owning an authentic katana forged in Japan is a dream for many collectors and enthusiasts of samurai culture. These swords are not simple weapons; they are living works of art, full of history and crafted with techniques passed down for centuries. But the big question remains: how much does an authentic katana really cost?
The value of an Authentic Katana
The price of a Japanese katana is not determined by the steel alone or the time spent forging it. A nihonto (authentic Japanese sword) embodies centuries of tradition, spirituality, and masterful craftsmanship.
Japanese swordsmiths (katana-kaji) spend decades perfecting their art. They transform tamahagane steel into blades that combine beauty, strength, and legendary sharpness. Every sword is unique, unrepeatable, and reflects the essence of its maker.
For this reason, the cost of an authentic katana starts at around €3,000, but in some cases the price can exceed €200,000 depending on age, condition, certification, and the reputation of the smith who forged it.

Factors that determine Katana prices
Not all authentic katanas hold the same value. Several aspects directly influence the final price:
1. Age and historical period
Older swords, especially those from the Koto period (before 1596) or the Kamakura era (1185–1332), tend to be far more expensive due to their rarity and historical importance.
By contrast, more recent swords, known as Shinsakuto (made after 1945), are more accessible yet still authentic.
2. Swordsmith
The fame of the smith has a direct impact on the price. A katana forged by legendary masters such as Masamune or Muramasa can reach astronomical sums. Contemporary smiths with awards and recognition also achieve high values.
3. NBTHK certification
The NBTHK (Nihon Bijutsu Token Hozon Kyokai) is the official Japanese body that preserves and certifies authentic swords. A katana with NBTHK papers not only guarantees authenticity but also significantly increases its value.
The four certification levels, from lowest to highest, are:
- Hozon (worthy of preservation)
- Tokubetsu Hozon (especially worthy of preservation)
- Juyo Token (important work)
- Tokubetsu Juyo Token (especially important work)
The higher the classification, the higher the sword’s value.

4. Condition
A blade in excellent condition, with correct polishing and no damage, can be worth several times more than another from the same period in poor condition.
5. Mounts and fittings
A katana can come in a plain shirasaya (wooden resting scabbard) or with a full koshirae (ornamental mounts with tsuba, lacquered saya, and wrapped tsuka). The more elaborate and complete the fittings, the higher the final price.
Price ranges of Authentic Katanas
While each sword is unique, these ranges give an idea of what to expect:
- €3,000 – €7,000
Authentic swords from more antique periods like Edo Jidai or by lesser-known smiths, usually in shirasaya or mid-high koshirae with basic certification. - €7,000 – €20,000
Newly forged katanas by certified Japanese smiths, or older blades of good quality in decent condition. In splendid koshiraes, high rank certificates, etc. - €20,000 – €50,000
Historically significant antique swords or modern works by highly regarded smiths. Many Tokubetsu Hozon blades fall into this category. - Over €50,000
Legendary blades, Juyo and Tokubetsu Juyo swords, and pieces with historical significance. Some can exceed €200,000 at international auctions.
Antique vs. Modern Swords
Antique Swords
Swords forged between the Heian and Meiji periods (782–1912) are highly prized among collectors. They represent centuries of samurai tradition and Japanese artistry.
Their value depends on rarity, school, smith, and condition. A Kamakura-period masterpiece in excellent preservation can easily surpass €100,000.
Modern Swords (Shinsakuto)
Today, certified smiths in Japan still forge katanas using traditional techniques. These swords, though modern, are authentic and usually start at around €7,000.
With full ornamental mounts, prices rise to €10,000, and when made by prestigious contemporary smiths, they can exceed €50,000.

NBTHK Certification: guarantee of authenticity
Certification is essential when purchasing a katana. The NBTHK not only protects antique blades but also evaluates modern works.
Owning a katana with an NBTHK certificate or buy to a specific and reputable shop is the safest way to ensure the sword is genuine and not a replica. On the international market, uncertified swords are worth far less and often raise doubts among collectors.
Final thoughts
Acquiring an authentic katana is much more than buying a weapon or collectible. It means owning a unique piece of Japanese history and art.
Although prices range widely—from a few thousand euros to several hundred thousand—each katana reflects centuries of tradition, spirit, and technical mastery.
At Supein Nihonto, we specialize exclusively in authentic antique katanas. Every piece is unique and once sold, it is removed from our catalog forever. If you wish to explore our current collection, you can view it on our website and secure the piece that speaks to you before it disappears.