Lattice sunstone from Tanzania showing an especially dense concentration of copper inclusions aligned in a vertical pattern. This structure causes the light to reflect in vivid flashes, producing a multicolored glittering effect known as aventurescence.
This material is always directional, meaning the lattice pattern appears and disappears depending on the viewing angle. Really exciting stuff!
21.145 carats / 23.8 x 17.5 x 6.3 mm
Estimate: $150 - $165