Graded coins are coins that have been evaluated and assigned a grade based on their condition, rarity, and overall quality. The grading process is essential for collectors and investors alike, as it provides a standardized way to assess a coin's value. The grading is typically performed by professional grading services, which use a scale that ranges from 1 to 70, with 70 being a perfect coin. This scale is known as the Sheldon scale, named after its creator, Dr. William Sheldon. When a coin is submitted for grading, it undergoes a thorough examination by experts who assess various factors such as surface quality, luster, and the presence of any marks or imperfections. Coins are then placed into protective holders that display their grade, ensuring that they remain in optimal condition. The grading process not only helps in determining the market value of the coin but also assists collectors in making informed decisions when buying or selling. A higher grade generally indicates a higher value, making graded coins a popular choice among serious numismatists. Understanding this grading system is crucial for anyone looking to delve into the world of coin collecting or investment.