| Sold | Grade | Monthly Average |
| Dec 2025 | 2.5 | $9.60 |
| Dec 2024 | 4.5 | $14.40 |
| Sep 2024 | 4.5 | $20.00 |
| Oct 2021 | 4.5 | $36.00 |
| Dec 2023 | 4.0 | $24.00 |
| Sep 2024 | 3.5 | $17.50 |
| Aug 2017 | 3.5 | $8.21 |
| Jul 2023 | 3.0 | $11.00 |
| Mar 2021 | 3.0 | $5.60 |
| Aug 2020 | 3.0 | $5.60 |
| Oct 2022 | 2.5 | $9.60 |
| Sep 2023 | 2.0 | $8.00 |
| Mar 2019 | 1.8 | $6.84 |
| Apr 2022 | 1.0 | $3.00 |