| Years | Gemstones | Industrial | Total |
|---|---|---|---|
| 2024 | 2,198,000 carats [ 22.46% ] | 7,590,000 carats [ 77.54% ] | 9,788,000 carats |
| 2023 | 1,491,000 carats [ 17.86% ] | 6,856,000 carats [ 82.14% ] | 8,347,000 carats |
| 2022 | 1,865,000 carats [ 18.82% ] | 8,044,000 carats [ 81.18% ] | 9,909,000 carats |
| 2021 | 2,889,000 carats [ 20.50% ] | 11,202,000 carats [ 79.50% ] | 14,091,000 carats |
| 2020 | 2,165,000 carats [ 16.99% ] | 10,578,000 carats [ 83.01% ] | 12,743,000 carats |
| 2019 | 3,324,000 carats [ 23.48% ] | 10,834,000 carats [ 76.52% ] | 14,158,000 carats |
| 2018 | 3,030,000 carats [ 20.03% ] | 12,100,000 carats [ 79.97% ] | 15,130,000 carats |
| 2017 | 3,800,000 carats [ 19.90% ] | 15,300,000 carats [ 80.10% ] | 19,100,000 carats |
| 2016 | 3,160,000 carats [ 20.31% ] | 12,400,000 carats [ 79.69% ] | 15,560,000 carats |
| 2015 | 3,200,000 carats [ 20.00% ] | 12,800,000 carats [ 80.00% ] | 16,000,000 carats |
| 2014 | 3,130,000 carats [ 20.03% ] | 12,500,000 carats [ 79.97% ] | 15,630,000 carats |
| 2013 | 3,140,000 carats [ 20.08% ] | 12,500,000 carats [ 79.92% ] | 15,640,000 carats |
| 2012 | 4,000,000 carats [ 15.67% ] | 21,524,000 carats [ 84.33% ] | 25,524,000 carats |
| 2011 | 3,900,000 carats [ 20.00% ] | 15,600,000 carats [ 80.00% ] | 19,500,000 carats |
| 2010 | 3,400,000 carats [ 20.24% ] | 13,400,000 carats [ 79.76% ] | 16,800,000 carats |
| 2009 | 3,600,000 carats [ 20.00% ] | 14,400,000 carats [ 80.00% ] | 18,000,000 carats |
| 2008 | 5,400,000 carats [ 20.00% ] | 21,600,000 carats [ 80.00% ] | 27,000,000 carats |
| 2007 | 5,400,000 carats [ 19.85% ] | 21,800,000 carats [ 80.15% ] | 27,200,000 carats |
| 2006 | 5,600,000 carats [ 20.00% ] | 22,400,000 carats [ 80.00% ] | 28,000,000 carats |
| 2005 | 6,300,000 carats [ 20.00% ] | 25,200,000 carats [ 80.00% ] | 31,500,000 carats |
| 2004 | 6,180,000 carats [ 20.01% ] | 24,700,000 carats [ 79.99% ] | 30,880,000 carats |
| 2003 | 5,381,000 carats [ 19.94% ] | 21,600,000 carats [ 80.06% ] | 26,981,000 carats |
| 2002 | 4,223,000 carats [ 19.48% ] | 17,456,000 carats [ 80.52% ] | 21,679,000 carats |
| 2001 | 3,638,000 carats [ 19.99% ] | 14,560,000 carats [ 80.01% ] | 18,198,000 carats |
| 2000 | 3,300,000 carats [ 20.00% ] | 13,200,000 carats [ 80.00% ] | 16,500,000 carats |
| 1999 | 3,500,000 carats [ 19.44% ] | 14,500,000 carats [ 80.56% ] | 18,000,000 carats |
| 1998 | 2,000,000 carats [ 13.33% ] | 13,000,000 carats [ 86.67% ] | 15,000,000 carats |
| 1997 | 3,300,000 carats [ 14.86% ] | 18,900,000 carats [ 85.14% ] | 22,200,000 carats |
| 1996 | 3,600,000 carats [ 16.98% ] | 17,600,000 carats [ 83.02% ] | 21,200,000 carats |
| 1995 | 4,000,000 carats [ 23.53% ] | 13,000,000 carats [ 76.47% ] | 17,000,000 carats |
| 1994 | 4,000,000 carats [ 23.12% ] | 13,300,000 carats [ 76.88% ] | 17,300,000 carats |
| 1993 | 2,010,000 carats [ 12.88% ] | 13,600,000 carats [ 87.12% ] | 15,610,000 carats |
| Total Production | 116,124,000 carats [ 19.35% ] | 484,044,000 carats [ 80.65% ] | 600,168,000 carats |
| Gemstones = Jewelry Quality --- Industrial = Industrial Quality | |||