Rich violet/blue natural Tanzanite(.50tcw, VS,Africa) marquise cut hand set in sterling silver studs. These stone have a lovely color, showing to the quality of the gems, usually stone of this size are very pale. Tanzanite is a relatively new gemstone in the world of gemology and jewelry, and though its history is brief, it is no less illustrious than many ancient gems. Since its discovery, tanzanite has sold for as little as $20 per carat and as much as $1,000 per carat or more, for gem-quality, finely colored stones. That price may seem like a bargain in a few years, as tanzanite is a single-source gemstone and that source is expected to be mined out within the next 20 to 30 years based on the latest mining information.Please ask questionsI'm a home based small seller. All my items are one of a kind handmade pieces. I do not buy pre made of mass manufactured finished items. If you want something that looks like it came from a major jewelry store then please go there. If you want one of a kind,Individual,artistic, and unique pieces then look through my store.