| Years | Gemstones | Industrial | Total |
|---|---|---|---|
| 2024 | 22,000 carats [ 45.83% ] | 26,000 carats [ 54.17% ] | 48,000 carats |
| 2023 | 26,000 carats [ 47.27% ] | 29,000 carats [ 52.73% ] | 55,000 carats |
| 2022 | 25,000 carats [ 47.17% ] | 28,000 carats [ 52.83% ] | 53,000 carats |
| 2021 | 28,000 carats [ 47.46% ] | 31,000 carats [ 52.54% ] | 59,000 carats |
| 2020 | 28,000 carats [ 48.28% ] | 30,000 carats [ 51.72% ] | 58,000 carats |
| 2019 | 23,000 carats [ 41.82% ] | 32,000 carats [ 58.18% ] | 55,000 carats |
| 2018 | 48,000 carats [ 60.00% ] | 32,000 carats [ 40.00% ] | 80,000 carats |
| 2017 | 43,000 carats [ 59.72% ] | 29,000 carats [ 40.28% ] | 72,000 carats |
| 2016 | 38,000 carats [ 60.32% ] | 25,000 carats [ 39.68% ] | 63,000 carats |
| 2015 | 41,000 carats [ 60.29% ] | 27,000 carats [ 39.71% ] | 68,000 carats |
| 2014 | 39,000 carats [ 60.00% ] | 26,000 carats [ 40.00% ] | 65,000 carats |
| 2013 | 32,000 carats [ 60.38% ] | 21,000 carats [ 39.62% ] | 53,000 carats |
| 2012 | 42,000 carats [ 100.00% ] | 0.00 carat [ 0.00% ] | 42,000 carats |
| 2007 | 13,000 carats [ 59.09% ] | 9,000 carats [ 40.91% ] | 22,000 carats |
| 2006 | 7,000 carats [ 63.64% ] | 4,000 carats [ 36.36% ] | 11,000 carats |
| 2005 | 18,000 carats [ 60.00% ] | 12,000 carats [ 40.00% ] | 30,000 carats |
| 2004 | 18,000 carats [ 60.00% ] | 12,000 carats [ 40.00% ] | 30,000 carats |
| 2003 | 36,000 carats [ 60.00% ] | 24,000 carats [ 40.00% ] | 60,000 carats |
| 2002 | 48,000 carats [ 60.00% ] | 32,000 carats [ 40.00% ] | 80,000 carats |
| 2001 | 100,000 carats [ 58.82% ] | 70,000 carats [ 41.18% ] | 170,000 carats |
| 2000 | 60,000 carats [ 40.00% ] | 90,000 carats [ 60.00% ] | 150,000 carats |
| 1999 | 60,000 carats [ 60.00% ] | 40,000 carats [ 40.00% ] | 100,000 carats |
| 1998 | 60,000 carats [ 40.00% ] | 90,000 carats [ 60.00% ] | 150,000 carats |
| 1997 | 60,000 carats [ 40.00% ] | 90,000 carats [ 60.00% ] | 150,000 carats |
| 1996 | 60,000 carats [ 40.00% ] | 90,000 carats [ 60.00% ] | 150,000 carats |
| 1995 | 60,000 carats [ 40.00% ] | 90,000 carats [ 60.00% ] | 150,000 carats |
| 1994 | 40,000 carats [ 40.00% ] | 60,000 carats [ 60.00% ] | 100,000 carats |
| 1993 | 60,000 carats [ 40.00% ] | 90,000 carats [ 60.00% ] | 150,000 carats |
| Total Production | 1,135,000 carats [ 49.91% ] | 1,139,000 carats [ 50.09% ] | 2,274,000 carats |
| Gemstones = Jewelry Quality --- Industrial = Industrial Quality | |||