Diamond Average Gas Price
| Regular | Mid-Grade | Premium | Diesel | E85 | |
|---|---|---|---|---|---|
| Week Ago Avg. | $3.86 | $4.29 | $4.73 | $4.78 | - |
| Month Ago Avg. | $3.86 | $4.29 | $4.73 | $4.78 | - |
Highest Recorded Average Gas Price In Diamond Year to Date
| Price | Date | |
|---|---|---|
| Diesel | $4.78 | 06/15/26 |
| Regular | $3.86 | 06/15/26 |
Top 10 Gas Stations & Cheap Fuel Prices in Diamond
Casey's in Diamond (101 N Washington St)
101 N Washington St, Diamond, Missouri,
$3.79
Jul 18, 2026
0¢ Cashback
Casey's in Diamond (101 N Washington St)
101 N Washington StDiamondMissouri64840USA
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Gas Data Methodology
The fuel prices published in this guide are based on the results of research completed by Way.com’s data team. Using a mix of external and internal data, we analyzed millions of prices across U.S. ZIP codes and globally.