| Years | Gemstones | Industrial | Total |
|---|---|---|---|
| 2024 | 86,000 carats [ 77.48% ] | 25,000 carats [ 22.52% ] | 111,000 carats |
| 2023 | 84,000 carats [ 75.68% ] | 27,000 carats [ 24.32% ] | 111,000 carats |
| 2022 | 90,000 carats [ 76.27% ] | 28,000 carats [ 23.73% ] | 118,000 carats |
| 2021 | 72,000 carats [ 77.42% ] | 21,000 carats [ 22.58% ] | 93,000 carats |
| 2020 | 47,000 carats [ 75.81% ] | 15,000 carats [ 24.19% ] | 62,000 carats |
| 2019 | 22,000 carats [ 78.57% ] | 6,000 carats [ 21.43% ] | 28,000 carats |
| 2018 | 11,000 carats [ 78.57% ] | 3,000 carats [ 21.43% ] | 14,000 carats |
| 2017 | 38,000 carats [ 79.17% ] | 10,000 carats [ 20.83% ] | 48,000 carats |
| 2016 | 9,000 carats [ 81.82% ] | 2,000 carats [ 18.18% ] | 11,000 carats |
| 2013 | 65,000 carats [ 80.25% ] | 16,000 carats [ 19.75% ] | 81,000 carats |
| 2012 | 293,000 carats [ 80.05% ] | 73,000 carats [ 19.95% ] | 366,000 carats |
| 2011 | 259,000 carats [ 79.94% ] | 65,000 carats [ 20.06% ] | 324,000 carats |
| 2010 | 241,000 carats [ 80.07% ] | 60,000 carats [ 19.93% ] | 301,000 carats |
| 2009 | 249,000 carats [ 80.06% ] | 62,000 carats [ 19.94% ] | 311,000 carats |
| 2008 | 302,000 carats [ 80.11% ] | 75,000 carats [ 19.89% ] | 377,000 carats |
| 2007 | 370,000 carats [ 88.73% ] | 47,000 carats [ 11.27% ] | 417,000 carats |
| 2006 | 315,000 carats [ 75.00% ] | 105,000 carats [ 25.00% ] | 420,000 carats |
| 2005 | 265,000 carats [ 75.07% ] | 88,000 carats [ 24.93% ] | 353,000 carats |
| 2004 | 263,000 carats [ 74.93% ] | 88,000 carats [ 25.07% ] | 351,000 carats |
| 2003 | 250,000 carats [ 75.08% ] | 83,000 carats [ 24.92% ] | 333,000 carats |
| 2002 | 312,000 carats [ 75.00% ] | 104,000 carats [ 25.00% ] | 416,000 carats |
| 2001 | 340,000 carats [ 75.06% ] | 113,000 carats [ 24.94% ] | 453,000 carats |
| 2000 | 300,000 carats [ 66.67% ] | 150,000 carats [ 33.33% ] | 450,000 carats |
| 1999 | 300,000 carats [ 66.67% ] | 150,000 carats [ 33.33% ] | 450,000 carats |
| 1998 | 330,000 carats [ 62.26% ] | 200,000 carats [ 37.74% ] | 530,000 carats |
| 1997 | 400,000 carats [ 80.00% ] | 100,000 carats [ 20.00% ] | 500,000 carats |
| 1996 | 350,000 carats [ 74.47% ] | 120,000 carats [ 25.53% ] | 470,000 carats |
| 1995 | 400,000 carats [ 75.47% ] | 130,000 carats [ 24.53% ] | 530,000 carats |
| 1994 | 401,000 carats [ 75.38% ] | 131,000 carats [ 24.62% ] | 532,000 carats |
| 1993 | 370,000 carats [ 74.75% ] | 125,000 carats [ 25.25% ] | 495,000 carats |
| Total Production | 6,834,000 carats [ 75.46% ] | 2,222,000 carats [ 24.54% ] | 9,056,000 carats |
| Gemstones = Jewelry Quality --- Industrial = Industrial Quality | |||