
Based on the provided information, the most valuable half dollar coins are typically rare, early-issue pieces from the 18th and 19th centuries, often distinguished by their date, mint mark, and specific design variations.
The single most valuable half dollar cited is the 1797 Draped Bust, which reached an auction price of $1,527,500. Following this are other very early and rare issues, including the 1796 Draped Bust with 16 stars, valued at $822,500, and the 1838-O Capped Bust, which sold for $763,750. Another variety, the 1796 Draped Bust with 15 stars, is also highly valuable at $373,750.
Other significant half dollars include later designs from the 19th and early 20th centuries. The 1919-D Walking Liberty half dollar is valued at $270,250, while an 1878-S Liberty Seated coin has an auction record of $199,750. The list of top-tier coins also includes the 1921-S Walking Liberty ($188,000), the 1870-CC Liberty Seated ($172,500), and the 1872-CC Liberty Seated ($100,625).
While one provided source mentions valuable Kennedy half dollars, it does not specify which ones are most sought after. The highest values are clearly commanded by older series like the Draped Bust, Capped Bust, Seated Liberty, and key date Walking Liberty coins, especially those with low mintage numbers and in high-grade condition.


