By Charles Morgan and Hubert Walker for CoinWeek Notes …..
Also known as “About Uncirculated 58”, or “Borderline BU,” AU58 is a specific grade on the Sheldon Scale. A coin properly graded as AU58 shows only the slightest evidence of wear, typically on its highest points. It retains about 90% of its original luster and may appear uncirculated except under specific lighting conditions.
This grade was introduced in the 1970s by numismatist Tom DeLorey.
AU58 coins are often visually appealing and can sometimes have better eye appeal than coins graded MS60–MS62. Some MS60 to MS62 coins exhibit “cabinet friction,” which is a form of wear that is said to have been caused by incidental contact. Seeing as it takes more than incidental contact to cause wear on a coin’s surface, an argument can be made that such wear should reduce a coin’s grade to AU58. CoinWeek advises against paying Mint State prices for coins with this type of wear.
Current Definitions of AU58 from Major Third-Party Grading Services
CAC Grading (as of 8/2025):
CoinWeek asked for clarification on April 7, 2024.
NGC Grading (as of 8/2025):
“Slight wear on the highest points of the design. Full details.”
PCGS Grading (as of 8/2025):
“Only the slightest friction on the highest points. Virtually full luster.”
Extended Coverage on CoinWeek
U.S. gold coin specialist and CoinWeek Content Partner Doug Winter offers some tips on how to price “Gem Sliders”.
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Notes on Other Grades in the Sheldon Coin Grading Scale
- Good (G04 or G06)
- MS64: The In-Between Grade
- MS70: The Controversial “Perfect” Grade*
- PR70: The “Perfect” Proof Grade
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The post AU58 : A Grade Just Shy of Mint State appeared first on CoinWeek: Rare Coin, Currency, and Bullion News for Collectors.
