Gems and Jewelery Lanka is the only company in the Central African region to have introduced mass distribution of semi -precious stones. Mined exclusively in Central Africa we cut and polish our stones in our workshop and ship them worldwide. Our major areas of export have been South Asia, Western Europe and the South West United States. Whether rough and polished we have an array of certified semiprecious stones and specialize in Chalcedony for beads and other crafts. Please contact us and we will be happy to send free samples of our stones