Update on Gemstone Mining in Luc Yen, Vietnam | Gems ...
Many new discoveries were made in both primary deposits and placers. These gems were sold in the Luc Yen market. In 1995, the mines went under the management of the Vietnam National Gems and Gold Corporation (VIGEGO). A 2003 merger formed the Vietnam Minerals Corporation (VIMICO), and the Luc Yen mines are no longer controlled by the state.