This 3.14 carat freeform cabochon is a spectacular example of high-grade iridescent andradite garnet from Arlit, Niger—widely considered the premier locality for rainbow garnet material. Measuring 8.3mm x 10mm x 4.5mm, the stone exhibits a mesmerizing metallic diffraction pattern that plays across every polished face with exceptional intensity and clarity.

The lamellar iridescence, caused by submicroscopic twinning or exsolution structures within the garnet, produces vivid striations of rainbow color that shimmer like polished holographic foil. In this piece, the spectral lines are sharply defined and boldly colored, displaying striking hues of magenta, gold, teal, and violet depending on the angle of light.

Stones of this level—where the optical structure aligns to produce strong iridescence across multiple faces—are rarely found in such clean, wearable form. This makes it not only a collector-grade specimen, but also an ideal candidate for a unique statement ring or pendant. Arlit continues to produce the world’s most vividly diffractive andradite garnets, and this stone exemplifies why.