Gemstone and JewelryWe have found 2 items matching your search query.Gemstone and JewelrySort By: Date List Grid Map TanzaniteOne Mining Ltd BUSINESS DIRECTORY TanzaniteOne Mining Ltd is the world’s largest and most scientifically advanced miner and supplier of the rare and precious gemstone Tanzanite. More Details Gemstone and Jewelry Gemstone and Jewelry Umba River Rhodolite – The JTV Buying Process tinyurl.com The Umba River area of Tanzania has produced some of the most extraordinary gemstones ever found, including rhodolite, a variety of garn More Details 1Page 1 of 1