| Sold | Grade | Monthly Average |
| Sep 2023 | 1.8 | $152.00 |
| Dec 2022 | 4.5 | $290.00 |
| Apr 2021 | 4.5 | $164.00 |
| Jul 2020 | 4.0 | $181.00 |
| Feb 2015 | 2.0 | $33.00 |
| Apr 2013 | 2.0 | $45.00 |
| Jun 2020 | 1.0 | $49.50 |
| Mar 2015 | 1.0 | $14.10 |
| Jan 2022 | 0.5 | $70.00 |
| Sep 2020 | 0.5 | $16.94 |
| Jan 2019 | 0.5 | $25.00 |
| Mar 2011 | 0.5 | $19.00 |