Just like the alexandrite gem, the color of this distinctive octagonal knob changes color right before your eyes. Under fluorescent lighting it's a pretty pale blue, and in natural light or under an incandescent bulb it shifts to a lovely lavender color. Made of German crystal and a solid-brass base, it comes in an array of our most popular finishes.

Just like the alexandrite gem, the color of this distinctive square knob changes color right before your eyes. Under fluorescent lighting it's a pretty pale blue, and in natural light or under an incandescent bulb it shifts to a lovely lavender color. Made of German crystal and a solid-brass base, it comes in an array of our most popular finishes.