| Sold | Grade | Monthly Average |
| Dec 2025 | 3.5 | $64.00 |
| Feb 2026 | 2.5 | $68.00 |
| May 2025 | 4.0 | $125.00 |
| Oct 2024 | 3.5 | $64.00 |
| Mar 2010 | 3.5 | $44.00 |
| Mar 2019 | 3.0 | $134.00 |
| Dec 2014 | 3.0 | $51.00 |
| May 2021 | 2.5 | $100.01 |
| Oct 2018 | 2.0 | $96.00 |
| May 2018 | 1.8 | $76.00 |
| Apr 2012 | 1.5 | $22.00 |
| Apr 2013 | 1.0 | $17.00 |