American Gold Eagles are made with a composition of 91.67% gold, 3% silver, and 5.33% copper. The reason for this composition is to improve the coin’s durability and resistance to wear and damage.
While 24 karat, or 99.99% fine, gold is used in coin production, it is softer and not as durable as alloyed gold, which means scratches and dents are more likely, which can negatively impact a coin’s value over time. Adding small amounts of other metals like silver and copper strengthens the coin’s surface, which helps it resist damage from regular handling and natural wear and tear.
Overall, American Gold Eagles are 91.67% gold because this composition offers the right balance between durability and appearance while still making the coin’s gold content the primary driving force of its value.
