S. Martin is a world-class company for mining, lapidary and selling brazilian gemstones.The s. Martin mines, located in the south of brazil, are recognized for the quality of its stones. In special the citrines produced in this area are claimed to be the best quality all over the world.Our gems of amethysts, citrines, crystals and prasiolites, responsible for over 70% of the total annual production, are unique in terms of color and purity.The company also has very talented team trained to use the most advanced techniques of gemstones cutting and lapidary.Our mines are located in the south of brazil, in a region considered to have the best quality of citrines in the world and a very high quality of amethysts, crystals and quartz as well.The s. Martin mines are completely legal and authorized by the brazilian authorities providing security and liability to its clients.As far as the s. Martin mines has just started its operation,The company can offer to the international market many years of fine production.