| Sold | Grade | Monthly Average |
| Sep 2025 | 0.3 | $4.70 |
| Mar 2025 | 4.5 | $18.00 |
| Jul 2013 | 4.5 | $77.00 |
| Mar 2013 | 4.5 | $21.00 |
| Jul 2021 | 2.0 | $41.00 |
| Sep 2022 | 1.8 | $26.00 |
| Jan 2019 | 1.8 | $51.00 |
| May 2019 | 1.0 | $59.00 |
| Jun 2017 | 1.0 | $28.50 |
| Jan 2014 | 1.0 | $30.00 |
| Jul 2020 | 0.5 | $13.25 |
| Nov 2016 | 0.5 | $18.53 |
| Feb 2016 | 0.5 | $27.00 |
| Jun 2014 | 0.5 | $21.00 |
| Jul 2013 | 0.5 | $9.90 |