My personal favorite! Pietersite from Namibia, Africa. Center is soft twist in shades of gold. The complexity of the matrix in this stone is breath taking! Chatoyancy plus! (in the light, there is motion in the stone) Blended with Swarovski Denim crystal. Our own White Brass Scalloped tray base. Beads are wired down. Neodymium magnet bar works through your stock tie and shirt and holds securely. I wear one myself in competition with a fairly volatile mare. It doesn’t come off!