Natural blue Paraiba Apatite(.50tcw,VS, Brazil) hand set in sterling silver studs. Apatite is the name for a mineral group as well as the generic term for many phosphates, but gem-quality apatite is a special gemstone found in a beautiful variety of colors. Apatite's color is often due to the presence of rare earth elements or natural irradiation. Because of its wide color range, apatite has often been mistaken for many other gemstones, including topaz, tourmaline, and various kinds of beryl. As it is a relatively soft gem that can have pale translucency, apatite is often used in earrings where it will capture light and safely display its best beauty. The long-established source of gem-quality apatite is Brazil, though the mineral is found all over the world.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.