When collecting coins, one of the most important things to understand is how their condition is evaluated. This process is called coin grading and it plays a major アンティークコイン role in determining a coin’s value. Three terms you will often come across are MS, AU, and PCGS. Each of these refers to different aspects of how a coin is assessed and certified.

Mint State (MS) denotes coins that have never entered circulation. These coins are in pristine condition as they were when they left the mint. Coins graded as Mint State fall between MS60 and MS70, with MS70 being a perfect coin with no wear and no flaws visible under magnification. Even small scratches or contact marks can lower the grade. Collectors often seek high Mint State grades because these coins are scarce and retain their fresh shine and intricate craftsmanship.

AU stands for About Uncirculated. These coins show extremely light friction, usually on the relief areas. They may have been lightly circulated but still retain nearly full original shine. The AU range spans AU50 through AU58. The greater the grade, the reduced friction and the more luster remains. AU coins are a smart alternative for those who want almost flawless specimens but at a budget-friendly rate than MS65+ coins.

PCGS stands for Professional Coin Grading Service. It is one of the most respected independent graders in the world. When a coin is sent to PCGS, it is evaluated by trained specialists who determine its grade based on rigorous criteria. The coin is then encapsulated in a tamper-evident slab with a label that includes its grade, verification, and additional data. This process, called certification, helps prevent damage and tampering, and gives buyers confidence in the coin’s condition. PCGS is trusted by collectors and dealers alike because of its reliability and prestige.

Understanding these terms helps you make informed purchases when buying or selling coins. Whether you are looking for a flawless MS70 coin or a high-grade About Uncirculated coin, knowing the rating and who certified it can help you determine its market worth. Always look for coins graded by reputable services like NGC to ensure you are avoiding overpaying for misrepresented coins.