Brilliant Uncirculated (BU) describes a coin that has never entered circulation and retains its original mint luster. BU coins may show minor contact marks from handling during production and packaging, but exhibit no wear from use.
BU vs. Proof
| Feature | BU | Proof |
|---|---|---|
| **Strikes** | Single | Multiple |
| **Finish** | Satin/Original luster | Mirror/Frosted |
| **Handling** | Mass-produced in tubes | Individual packaging |
| **Premium** | Lower | Higher |
Grading BU Coins
BU coins typically grade between MS-60 and MS-70 on the Sheldon scale. Most bullion coins straight from the mint grade MS-69 or MS-70.