Great, a bit larger in width than the Emerald Apollo 2X I bought last time, for some reason. But I'm fine with that, there is just that much more glow band to show. The red in the glow stripe of the band looks cool in the normal light, even when it's not charged up. Once you see it fully charged in the dark, it really pops! It's kind of a two tone glow, it really is like lava. Red and an orangeish yellow. Very happy with all my Apollo rings from Rune, i just wish the lavender wasn't so hard to charge up. The Emerald charges in mere seconds. i will definitely be making more purchases in the future.