| Years | Gemstones | Industrial | Total |
|---|---|---|---|
| 2024 | 19,000 carats [ 38.00% ] | 31,000 carats [ 62.00% ] | 50,000 carats |
| 2023 | 33,000 carats [ 42.31% ] | 45,000 carats [ 57.69% ] | 78,000 carats |
| 2022 | 64,000 carats [ 40.51% ] | 94,000 carats [ 59.49% ] | 158,000 carats |
| 2021 | 62,000 carats [ 43.36% ] | 81,000 carats [ 56.64% ] | 143,000 carats |
| 2020 | 50,000 carats [ 40.32% ] | 74,000 carats [ 59.68% ] | 124,000 carats |
| 2019 | 62,000 carats [ 37.35% ] | 104,000 carats [ 62.65% ] | 166,000 carats |
| 2018 | 251,000 carats [ 100.00% ] | 0.00 carat [ 0.00% ] | 251,000 carats |
| 2017 | 255,000 carats [ 100.00% ] | 0.00 carat [ 0.00% ] | 255,000 carats |
| 2016 | 184,000 carats [ 100.00% ] | 0.00 carat [ 0.00% ] | 184,000 carats |
| 2015 | 32,000 carats [ 100.00% ] | 0.00 carat [ 0.00% ] | 32,000 carats |
| 2014 | 57,000 carats [ 100.00% ] | 0.00 carat [ 0.00% ] | 57,000 carats |
| 2013 | 49,000 carats [ 100.00% ] | 0.00 carat [ 0.00% ] | 49,000 carats |
| 2012 | 46,000 carats [ 7.12% ] | 600,000 carats [ 92.88% ] | 646,000 carats |
| 2011 | 46,000 carats [ 7.12% ] | 600,000 carats [ 92.88% ] | 646,000 carats |
| 2010 | 25,000 carats [ 4.00% ] | 600,000 carats [ 96.00% ] | 625,000 carats |
| 2009 | 21,000 carats [ 3.38% ] | 600,000 carats [ 96.62% ] | 621,000 carats |
| 2008 | 80,000 carats [ 11.76% ] | 600,000 carats [ 88.24% ] | 680,000 carats |
| 2007 | 300,000 carats [ 33.33% ] | 600,000 carats [ 66.67% ] | 900,000 carats |
| 2006 | 300,000 carats [ 33.33% ] | 600,000 carats [ 66.67% ] | 900,000 carats |
| 2005 | 300,000 carats [ 33.33% ] | 600,000 carats [ 66.67% ] | 900,000 carats |
| 2004 | 300,000 carats [ 33.33% ] | 600,000 carats [ 66.67% ] | 900,000 carats |
| 2003 | 400,000 carats [ 40.00% ] | 600,000 carats [ 60.00% ] | 1,000,000 carats |
| 2002 | 500,000 carats [ 45.45% ] | 600,000 carats [ 54.55% ] | 1,100,000 carats |
| 2001 | 700,000 carats [ 53.85% ] | 600,000 carats [ 46.15% ] | 1,300,000 carats |
| 2000 | 215,000 carats [ 41.75% ] | 300,000 carats [ 58.25% ] | 515,000 carats |
| 1999 | 300,000 carats [ 33.33% ] | 600,000 carats [ 66.67% ] | 900,000 carats |
| 1998 | 300,000 carats [ 33.33% ] | 600,000 carats [ 66.67% ] | 900,000 carats |
| 1997 | 300,000 carats [ 33.33% ] | 600,000 carats [ 66.67% ] | 900,000 carats |
| 1996 | 200,000 carats [ 25.00% ] | 600,000 carats [ 75.00% ] | 800,000 carats |
| 1995 | 676,000 carats [ 52.98% ] | 600,000 carats [ 47.02% ] | 1,276,000 carats |
| 1994 | 300,000 carats [ 33.33% ] | 600,000 carats [ 66.67% ] | 900,000 carats |
| 1993 | 1,000,000 carats [ 62.50% ] | 600,000 carats [ 37.50% ] | 1,600,000 carats |
| Total Production | 7,427,000 carats [ 37.98% ] | 12,129,000 carats [ 62.02% ] | 19,556,000 carats |
| Gemstones = Jewelry Quality --- Industrial = Industrial Quality | |||