Buying Smarter

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What Does “BU” Mean in Coin Listings?

The term “BU” gets thrown around a lot in coin listings, but it doesn’t mean what most people think. It stands for “Brilliant Uncirculated,” but there’s no official standard behind it, and sellers use it loosely. This post breaks down what BU really means, how to spot a true uncirculated coin, and how to avoid listings that lean on buzzwords instead of condition.

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The Difference Between Uncirculated and Mint State

If you’ve spent any time looking at coin listings or browsing collector forums, you’ve probably come across the terms “uncirculated” and “mint state.” They get tossed around a lot, sometimes as if they mean the same thing, other times like they’re completely different. And depending on who you ask, you might get a different answer…

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Fake Toning: Pretty Coins, Ugly Truth

Some coins earn their color the hard way. They sit in envelopes, albums, or mint sets for decades, slowly picking up hues from their environment. Others take a shortcut. They get dunked in sulfur, baked in ovens, or blasted with heat just to grab attention and a higher price tag. That’s fake toning. At first…

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The Truth About Plated Coins: Gimmicks, Science, and Deception

Every now and then, you’ll come across a U.S. coin that looks a little too shiny for its own good – mirror-like surface, strange hue, sometimes even “golden.” If it’s a common date, has no mint error, and doesn’t make sense for the coin type… odds are you’ve found a plated coin. A plated coin…

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How to Spot a Cleaned Coin (And Why It Matters)

If you hang around coin collecting communities long enough, you’ll eventually run into a coin that looks almost too good. The shine seems unnatural. The details seem off. You flip it around in the light and feel like something’s not quite right. That’s usually when someone drops the dreaded comment: “It looks cleaned.” In this…

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What Does “Details” Mean on a Coin Slab?

A details grade is assigned to a coin when a grading service determines that the coin has been altered or damaged in a way that disqualifies it from receiving a straight numerical grade. The grader still evaluates the coin’s level of wear (VF, AU, MS, etc.) but the final grade includes a note explaining the…