The cost of a jian, the traditional Chinese straight sword, can vary significantly depending on various factors such as the quality of materials, craftsmanship, historical significance, and whether it is an antique or a modern replica.

At the lower end, you may find relatively affordable jian replicas made with lower-quality materials, which can range from around $100 to $500. These are often mass-produced swords that may lack the same level of craftsmanship and authenticity as higher-end options.

On the other hand, high-quality jian swords crafted by skilled artisans, using traditional techniques and premium materials, can be significantly more expensive. These swords can range from several hundred dollars to several thousand dollars or more. Rare or antique jian swords with historical provenance or unique features can command even higher prices and may be sought after by collectors.

It's important to note that pricing can also be influenced by the reputation of the swordsmith or manufacturer, the type of steel used, the level of detailing, and any additional accessories or scabbards that come with the sword.

If you are interested in purchasing a jian, it is recommended to do thorough research, seek reputable sources or dealers, and consider your budget and requirements before making a purchase.