The value of swords can vary greatly depending on several factors, including:

1. Age and Historical Significance: Swords with a longer history or those associated with notable events or figures can command higher values. Antiquity and historical importance are significant factors in determining value.
2. Rarity and Authenticity: Swords that are rare, unique, or have limited production numbers are generally more valuable. Authenticity is crucial, and swords with clear provenance and documentation can carry higher worth.
3. Craftsmanship and Quality: The level of craftsmanship, skill, and artistry involved in creating a sword can influence its value. Swords made by renowned swordsmiths or those displaying exceptional workmanship may command higher prices.
4. Condition: The condition of the sword is a significant factor in its value. Swords in excellent condition, with minimal wear, damage, or restoration, are generally more valuable compared to those in poor condition.
5. Materials and Construction: The quality of the materials used, such as the type of steel, fittings, and adornments, can impact a sword's value. Swords made from higher-grade steel, intricate designs, and high-quality fittings tend to be more valuable.
6. Demand and Market Factors: Market demand, trends, and collector preferences can affect the value of swords. The desirability of certain types of swords, styles, or historical periods can influence their worth.

It's important to note that the value of a sword is subjective and can vary based on individual appraisals, market conditions, and the expertise of those assessing it. The assistance of professionals, such as sword appraisers or experts in the field, is often sought to determine the accurate value of a particular sword based on its unique characteristics and the current market.