Sea Glass is described as a "jade shimmer." It's a medium-dark, muted green-gray with a matte finish. It seemed to have good color payoff when I swatched it, but the powdery texture made it difficult for it to actually stay on the skin--it was very prone to sheering out with the merest touch of the brush. It wore well for eight and a half hours before fading. bareMinerals Velvet Emerald (LE, $14.00) is much greener and less gray (not really dupe, but it was the only other closest one besides Earth!). bareMinerals Earth (P) is darker. See comparison swatches / view dupes.