- The rarest color in Aventurine (sometimes called Red Aventurine), beautiful material carved from the top translucent gem material found from the veins in China. Most material found is opaque or badly flawed. Only a very small percentage of material found is the top gem grade and this cab has been cut from the finest found. Beautiful burnt orange golden hue, opaque, free of significant unnatural flaws. High gloss finish, this carving measures approx: 33.6 x 24.0 x 38.7mm.