| Quality | Average ($/Oz.)* | Sample Size |
|---|---|---|
| High Quality | $314.29 | 4 |
| Medium Quality | $207.16 | 13 |
| Low Quality | I feel bad for these guys --> | 2 |
| Rishton, Blackburn with Darwen | $224 | an ounce | medium quality | Dec 9, 2019 |
| Blackburn, Blackburn with Darwen | $304 | an ounce | medium quality | Dec 3, 2016 |
| Blackburn, Blackburn with Darwen | $13 | a gram | high quality | Nov 26, 2016 |
| Blackburn, Blackburn with Darwen | $13 | a gram | high quality | Jul 11, 2016 |
| Blackburn, Blackburn with Darwen | $20 | 20 grams | medium quality | Mar 16, 2015 |