| as emeralds | 12 | other |
| very | 4 | degree |
| until 1800’s | 4 | temporal |
| amethyst → be → valuable | 7 |
| amethyst → be considered → valuable | 5 |
| negative | neutral | positive |
| 0.012 | 0.331 | 0.656 |
| Raw frequency | 12 |
| Normalized frequency | 0.315 |
| Modifier score | 0.500 |
| Perplexity | 206.393 |