| Sold | Grade | Monthly Average |
| Jul 2025 | 3.5 | $123.00 |
| Aug 2025 | 2.5 | $141.00 |
| Nov 2019 | 6.0 | $12.00 |
| Jan 2024 | 4.0 | $315.00 |
| Aug 2018 | 4.0 | $8.75 |
| Aug 2016 | 4.0 | $12.50 |
| Apr 2016 | 4.0 | $12.50 |
| Sep 2017 | 3.5 | $7.00 |
| Oct 2014 | 3.0 | $5.00 |
| Sep 2010 | 3.0 | $5.00 |
| May 2016 | 2.5 | $5.20 |
| Nov 2018 | 2.0 | $4.40 |
| Mar 2014 | 2.0 | $3.60 |