| Sold | Grade | Monthly Average |
| May 2024 | 5.0 | $15.50 |
| Jan 2024 | 4.5 | $15.75 |
| Mar 2024 | 4.0 | $10.50 |
| Mar 2024 | 3.0 | $10.00 |
| Aug 2013 | CGC 9.8 Restored | $75.00 |
| Sep 2011 | CGC 9.8 Restored Qualified | $29.59 |
| Aug 2022 | CGC 9.6 | $250.00 |
| Feb 2017 | CGC 9.6 | $195.00 |
| Jul 2022 | CGC 9.0 | $110.00 |
| Sep 2021 | 8.5 | $50.00 |
| Dec 2020 | 8.5 | $57.00 |
| Dec 2021 | 8.0 | $39.00 |
| Jun 2020 | 8.0 | $45.00 |
| Dec 2019 | CGC 8.0 | $43.00 |
| Jan 2013 | 8.0 | $18.50 |
| Mar 2023 | 7.5 | $27.00 |
| Jun 2016 | 7.5 | $31.00 |
| Mar 2014 | 7.5 | $21.50 |
| Sep 2023 | 7.0 | $30.50 |
| Aug 2022 | 7.0 | $26.50 |
| Apr 2021 | 7.0 | $27.00 |
| Dec 2018 | 7.0 | $24.00 |
| Apr 2017 | 7.0 | $15.91 |
| Nov 2016 | 7.0 | $10.00 |
| Oct 2014 | 7.0 | $24.00 |
| Jul 2012 | 7.0 | $10.20 |
| Jun 2010 | 7.0 | $11.25 |
| Oct 2021 | 6.5 | $19.95 |
| Feb 2021 | 6.5 | $20.50 |
| Aug 2018 | 6.5 | $20.50 |
| May 2015 | 6.5 | $17.25 |
| Aug 2014 | 6.5 | $14.63 |
| Jul 2014 | 6.5 | $13.00 |
| Mar 2012 | 6.5 | $7.32 |
| Aug 2011 | 6.5 | $9.70 |
| Aug 2023 | 6.0 | $26.00 |
| Jul 2021 | 6.0 | $30.00 |
| Jan 2021 | 6.0 | $16.75 |
| Nov 2020 | 6.0 | $16.75 |
| Jun 2020 | 6.0 | $16.75 |
| May 2020 | 6.0 | $16.75 |
| Nov 2019 | 6.0 | $15.08 |
| Oct 2019 | 6.0 | $16.75 |
| Sep 2019 | 6.0 | $15.91 |
| Dec 2017 | 6.0 | $9.75 |
| Nov 2017 | 6.0 | $9.00 |
| Aug 2017 | 6.0 | $10.00 |
| May 2017 | 6.0 | $10.00 |
| Jan 2016 | 6.0 | $12.00 |
| Oct 2015 | 6.0 | $14.25 |
| Mar 2014 | 6.0 | $14.25 |
| Jan 2013 | 6.0 | $8.17 |
| Aug 2011 | 6.0 | $7.70 |
| Jan 2011 | 6.0 | $6.80 |
| Jun 2010 | 6.0 | $8.10 |
| Sep 2023 | 5.5 | $11.00 |
| Oct 2022 | 5.5 | $16.75 |
| Aug 2022 | 5.5 | $16.75 |
| Feb 2022 | 5.5 | $15.50 |
| Jul 2021 | 5.5 | $18.00 |
| Sep 2020 | 5.5 | $15.00 |
| Jan 2020 | 5.5 | $12.00 |
| Jan 2019 | 5.5 | $15.00 |
| Nov 2016 | 5.5 | $5.13 |
| Jun 2016 | 5.5 | $15.00 |
| Feb 2016 | 5.5 | $15.00 |
| Jul 2012 | 5.5 | $5.50 |
| Dec 2011 | 5.5 | $8.10 |
| Apr 2011 | 5.5 | $7.30 |
| Jan 2011 | 5.5 | $6.20 |
| Oct 2010 | 5.5 | $7.30 |
| Sep 2023 | 5.0 | $17.25 |
| Aug 2023 | 5.0 | $17.25 |
| Jan 2023 | 5.0 | $14.99 |
| Oct 2021 | 5.0 | $13.75 |
| Sep 2021 | 5.0 | $13.75 |
| Aug 2021 | 5.0 | $13.75 |
| May 2021 | 5.0 | $14.62 |
| Dec 2020 | 5.0 | $15.50 |
| Jul 2020 | 5.0 | $10.21 |
| Jun 2020 | 5.0 | $10.75 |
| Jan 2020 | 5.0 | $10.75 |
| Apr 2019 | 5.0 | $10.48 |
| Feb 2019 | 5.0 | $12.59 |
| Dec 2018 | 5.0 | $18.50 |
| Oct 2018 | 5.0 | $13.25 |
| Feb 2017 | 5.0 | $4.80 |
| Jun 2013 | 5.0 | $9.60 |
| Apr 2013 | 5.0 | $9.12 |
| Mar 2013 | 5.0 | $9.60 |
| Oct 2012 | 5.0 | $6.50 |
| Mar 2011 | 5.0 | $6.49 |
| Aug 2010 | 5.0 | $5.80 |
| Aug 2023 | 4.5 | $14.96 |
| Nov 2022 | 4.5 | $12.15 |
| Oct 2022 | 4.5 | $13.50 |
| May 2022 | 4.5 | $11.88 |
| Feb 2022 | 4.5 | $12.50 |
| Nov 2021 | 4.5 | $11.25 |
| Mar 2021 | 4.5 | $12.25 |
| Jun 2020 | 4.5 | $9.80 |
| Feb 2020 | 4.5 | $9.80 |
| Jan 2019 | 4.5 | $17.50 |
| Jan 2018 | 4.5 | $8.00 |
| Apr 2017 | 4.5 | $7.30 |
| Aug 2016 | 4.5 | $12.25 |
| Sep 2015 | 4.5 | $8.80 |
| May 2015 | 4.5 | $8.80 |
| Nov 2011 | 4.5 | $7.49 |
| Apr 2011 | 4.5 | $5.61 |
| Dec 2009 | 4.5 | $7.20 |
| Jul 2023 | 4.0 | $11.64 |
| Jun 2023 | 4.0 | $11.64 |
| Apr 2023 | 4.0 | $12.25 |
| Nov 2022 | 4.0 | $11.03 |
| Oct 2022 | 4.0 | $12.25 |
| Sep 2022 | 4.0 | $12.25 |
| Aug 2022 | 4.0 | $12.25 |
| Feb 2022 | 4.0 | $11.50 |
| Jul 2021 | 4.0 | $13.25 |
| Mar 2021 | 4.0 | $11.00 |
| Nov 2020 | 4.0 | $9.90 |
| Aug 2020 | 4.0 | $8.77 |
| Jun 2020 | 4.0 | $8.99 |
| May 2020 | 4.0 | $9.75 |
| Dec 2019 | 4.0 | $8.54 |
| Apr 2019 | 4.0 | $8.99 |
| Jun 2018 | 4.0 | $11.00 |
| Mar 2018 | 4.0 | $11.00 |
| Mar 2017 | 4.0 | $6.37 |
| May 2015 | 4.0 | $8.00 |
| Jul 2014 | 4.0 | $4.80 |
| Jun 2014 | 4.0 | $4.80 |
| Jan 2013 | 4.0 | $4.80 |
| Jul 2011 | 4.0 | $5.40 |
| Apr 2011 | 4.0 | $5.13 |
| Sep 2023 | 3.5 | $9.50 |
| Mar 2023 | 3.5 | $9.99 |
| Jan 2021 | 3.5 | $8.99 |
| May 2020 | 3.5 | $6.20 |
| Apr 2020 | 3.5 | $6.20 |
| Mar 2020 | 3.5 | $6.20 |
| Feb 2020 | 3.5 | $6.75 |
| Sep 2019 | 3.5 | $5.89 |
| May 2019 | 3.5 | $8.00 |
| Dec 2017 | 3.5 | $5.30 |
| Jul 2016 | 3.5 | $8.99 |
| Feb 2016 | 3.5 | $8.99 |
| May 2015 | 3.5 | $6.40 |
| Mar 2015 | 3.5 | $6.40 |
| Jan 2014 | 3.5 | $3.00 |
| Oct 2012 | 3.5 | $3.00 |
| Jun 2012 | 3.5 | $2.30 |
| Nov 2010 | 3.5 | $4.30 |
| Apr 2022 | 3.0 | $8.00 |
| Apr 2020 | 3.0 | $5.49 |
| Nov 2019 | 3.0 | $4.94 |
| Jan 2019 | 3.0 | $7.80 |
| Dec 2016 | 3.0 | $4.47 |
| Jan 2016 | 3.0 | $4.47 |
| Jul 2014 | 3.0 | $3.30 |
| Aug 2013 | 3.0 | $4.49 |
| Jun 2013 | 3.0 | $4.49 |
| Jun 2012 | 3.0 | $2.00 |
| Oct 2010 | 3.0 | $3.70 |
| Oct 2019 | 2.5 | $4.70 |
| Dec 2018 | 2.5 | $6.37 |
| May 2018 | 2.5 | $6.70 |
| Oct 2017 | 2.5 | $3.80 |
| Jun 2017 | 2.5 | $4.00 |
| Jul 2016 | 2.5 | $6.70 |
| Oct 2015 | 2.5 | $5.20 |
| Sep 2014 | 2.5 | $4.56 |
| Jun 2012 | 2.5 | $1.70 |
| Nov 2011 | 2.5 | $4.80 |
| Jun 2010 | 2.5 | $3.20 |
| Jan 2010 | 2.5 | $3.90 |
| Jun 2023 | 2.0 | $6.20 |
| Oct 2022 | 2.0 | $6.20 |
| Aug 2022 | 2.0 | $6.20 |
| Mar 2022 | 2.0 | $5.70 |
| Dec 2021 | 2.0 | $5.42 |
| May 2021 | 2.0 | $5.60 |
| Mar 2021 | 2.0 | $5.60 |
| Aug 2019 | 2.0 | $3.90 |
| Mar 2019 | 2.0 | $5.00 |
| Apr 2015 | 2.0 | $4.00 |
| Mar 2015 | 2.0 | $4.00 |
| Sep 2014 | 2.0 | $4.30 |
| Jul 2014 | 2.0 | $2.28 |
| Oct 2013 | 2.0 | $3.20 |
| May 2013 | 2.0 | $3.04 |
| Feb 2013 | 2.0 | $3.20 |
| Aug 2010 | 2.0 | $2.40 |
| Dec 2009 | 2.0 | $2.98 |
| Oct 2017 | 1.8 | $3.20 |
| May 2016 | 1.8 | $5.04 |
| Feb 2023 | 1.5 | $4.30 |
| May 2014 | 1.5 | $3.42 |
| Dec 2022 | 1.0 | $3.10 |
| Sep 2022 | 1.0 | $2.95 |
| Aug 2015 | 1.0 | $2.40 |
| Nov 2010 | 1.0 | $1.30 |
| Mar 2016 | 0.5 | $1.60 |