Understanding Coin Grading: MS, AU, and PCGS Explained > 자유게시판

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 role in determining a coin’s value. Three terms you will often come across are Uncirculated Grade, About Uncirculated, and アンティークコイン投資 Professional Coin Grading Service. 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. Mint State coins range from MS60 to MS70, with MS70 representing a flawless specimen under 5x magnification. Even small scratches or contact marks can lower the grade. Collectors often seek elevated MS ratings because these coins are highly uncommon and retain their fresh shine and sharp design elements.

About Uncirculated (AU) describes coins with minimal circulation wear. These coins show extremely light friction, usually on the relief areas. They may have been handled lightly but still retain significant residual brilliance. Coins in the About Uncirculated category fall between AU50 and AU58. The greater the grade, the minimal contact and the greater the shine. AU coins are a favorite among collectors for those who want almost flawless specimens but at a more affordable price than top-grade uncirculated coins.

PCGS is short for Professional Coin Grading Service. It is one of the top-certifying authorities in the world. When a coin is sent to PCGS, it is evaluated by trained specialists who determine its grade based on strict standards. The coin is then encapsulated in a tamper-evident slab with a label that includes its grade, authenticity, and other details. This process, called slabbing, helps prevent damage and unauthorized alteration, and gives buyers peace of mind regarding its state. PCGS is widely respected across the numismatic community because of its accuracy and track record.

Understanding these terms helps you make smarter choices when buying or selling coins. Whether you are looking for a top-tier MS70 example or a high-grade About Uncirculated coin, knowing the condition level and the certifying authority can help you assess its true value. Always look for coins certified by trusted firms like NGC to ensure you are avoiding overpaying for misrepresented coins.