| Years | Gemstones | Industrial | Total |
|---|---|---|---|
| 2024 | 2,000 carats [ 40.00% ] | 3,000 carats [ 60.00% ] | 5,000 carats |
| 2023 | 2,000 carats [ 40.00% ] | 3,000 carats [ 60.00% ] | 5,000 carats |
| 2022 | 2,000 carats [ 40.00% ] | 3,000 carats [ 60.00% ] | 5,000 carats |
| 2021 | 2,000 carats [ 28.57% ] | 5,000 carats [ 71.43% ] | 7,000 carats |
| 2020 | 5,000 carats [ 38.46% ] | 8,000 carats [ 61.54% ] | 13,000 carats |
| 2019 | 1,000 carats [ 25.00% ] | 3,000 carats [ 75.00% ] | 4,000 carats |
| 2018 | 130,000 carats [ 40.63% ] | 190,000 carats [ 59.38% ] | 320,000 carats |
| 2017 | 110,000 carats [ 34.38% ] | 210,000 carats [ 65.63% ] | 320,000 carats |
| 2016 | 150,000 carats [ 42.86% ] | 200,000 carats [ 57.14% ] | 350,000 carats |
| 2015 | 180,000 carats [ 41.86% ] | 250,000 carats [ 58.14% ] | 430,000 carats |
| 2014 | 250,000 carats [ 43.86% ] | 320,000 carats [ 56.14% ] | 570,000 carats |
| 2013 | 200,000 carats [ 40.00% ] | 300,000 carats [ 60.00% ] | 500,000 carats |
| 2012 | 230,000 carats [ 43.40% ] | 300,000 carats [ 56.60% ] | 530,000 carats |
| 2011 | 221,000 carats [ 43.68% ] | 285,000 carats [ 56.32% ] | 506,000 carats |
| 2010 | 221,000 carats [ 43.68% ] | 285,000 carats [ 56.32% ] | 506,000 carats |
| 2009 | 126,000 carats [ 47.37% ] | 140,000 carats [ 52.63% ] | 266,000 carats |
| 2008 | 82,000 carats [ 45.81% ] | 97,000 carats [ 54.19% ] | 179,000 carats |
| 2007 | 152,000 carats [ 24.72% ] | 463,000 carats [ 75.28% ] | 615,000 carats |
| 2006 | 236,000 carats [ 55.53% ] | 189,000 carats [ 44.47% ] | 425,000 carats |
| 2005 | 110,000 carats [ 36.67% ] | 190,000 carats [ 63.33% ] | 300,000 carats |
| 2004 | 74,000 carats [ 37.95% ] | 121,000 carats [ 62.05% ] | 195,000 carats |
| 2003 | 44,000 carats [ 34.92% ] | 82,000 carats [ 65.08% ] | 126,000 carats |
| 2002 | 42,000 carats [ 34.15% ] | 81,000 carats [ 65.85% ] | 123,000 carats |
| 2001 | 54,000 carats [ 37.24% ] | 91,000 carats [ 62.76% ] | 145,000 carats |
| 2000 | 150,000 carats [ 69.77% ] | 65,000 carats [ 30.23% ] | 215,000 carats |
| 1999 | 107,000 carats [ 61.14% ] | 68,000 carats [ 38.86% ] | 175,000 carats |
| 1998 | 126,000 carats [ 54.31% ] | 106,000 carats [ 45.69% ] | 232,000 carats |
| 1997 | 235,000 carats [ 60.88% ] | 151,000 carats [ 39.12% ] | 386,000 carats |
| 1996 | 231,000 carats [ 60.79% ] | 149,000 carats [ 39.21% ] | 380,000 carats |
| 1995 | 183,000 carats [ 59.03% ] | 127,000 carats [ 40.97% ] | 310,000 carats |
| 1994 | 180,000 carats [ 65.22% ] | 96,000 carats [ 34.78% ] | 276,000 carats |
| 1993 | 101,000 carats [ 46.33% ] | 117,000 carats [ 53.67% ] | 218,000 carats |
| Total Production | 3,939,000 carats [ 45.61% ] | 4,698,000 carats [ 54.39% ] | 8,637,000 carats |
| Gemstones = Jewelry Quality --- Industrial = Industrial Quality | |||