This extraordinary bi-colored Ruby crystal has incredible luster with an unusual shape that makes it appear twisted. The Ruby has distinct gem areas with pink-red to red ends and almost a glowing purple-red mid-section, along with a luster that will knock your socks off! It's a robust crystal for sure with an unusual shape: roughly hexagonal outline and it's prism faces are interestingly formed, as are the pinacoid faces at each termination. This is just a fabulous, 18.5 gram, gemmy Ruby with, once again, exceptional natural wet-looking luster!