| Sold | Grade | Monthly Average |
| Mar 2026 | 0.3 | $2.90 |
| Feb 2024 | 6.0 | $85.00 |
| Feb 2012 | 6.0 | $22.00 |
| Jan 2022 | 5.5 | $30.00 |
| Jul 2022 | 5.0 | $20.00 |
| Mar 2023 | 4.5 | $15.00 |
| Oct 2024 | 3.5 | $16.00 |
| May 2016 | 3.5 | $10.80 |
| Apr 2022 | 3.0 | $13.54 |
| Oct 2017 | 3.0 | $10.50 |
| Jan 2020 | 2.0 | $14.50 |
| Oct 2017 | 2.0 | $5.75 |
| Sep 2025 | 1.8 | $11.00 |
| Apr 2020 | 1.5 | $7.75 |
| Jan 2020 | 1.5 | $7.10 |
| Jul 2015 | 1.5 | $6.60 |
| May 2014 | 1.0 | $5.10 |
| Mar 2013 | 0.3 | $2.40 |