This spectacular 9.42 ct freeform polished andradite garnet from Arlit, Niger displays vibrant, tightly banded lamellar diffraction with bold color zoning. The iridescent layer in this piece is strong and reflective, showing a dynamic interplay of spectral hues across the surface—from cool violets and blues to warmer copper and amber tones, depending on the angle of light. The shape is sculpted to follow the natural contours of the garnet, creating a striking silhouette that enhances the diffraction pattern. Rare material from a lesser-known locality, this is a choice example of gem-quality iridescent andradite.