The color in this stone is really unique. It's somewhere between a light colored Emerald and a darker colored Aquamarine. The stone is a good mix of blue and green, and somewhat reminds me of the color seen in the Copper-bearing Tourmalines from Nigeria. Almost all Beryl contains some kind of a chromaphore that causes the different color (i.e., iron, chromium, manganese etc) but you rarely see Beryls that carry a trace of Vanadium. Honestly, I have only seen a few of these stones over the years, and they're always small, but the color is really pleasing. This stone is virtually eye clean with a Rectangle cut. A great stone for Beryl collectors.