This exceptional rainbow garnet from Arlit, Niger, displays some of the most intense lamellar diffraction seen in andradite garnets. Cut in a rose-style faceting pattern to best reveal its spectral properties, the stone radiates vivid flashes of iridescent color—metallic greens, magentas, purples, and golds shoot off every face with stunning intensity. The term “metallic” is especially appropriate here, as the iridescent sheen seems almost reflective, unlike the subtler effects seen in other localities.

Stones from Arlit are renowned among collectors for their extreme saturation and brightness. Unlike the pastel or translucent effects found in garnets from New Mexico or Japan, the Arlit material exhibits a dramatic, almost oil-slick brilliance due to the densely packed lamellar structures that diffract light with maximal efficiency.

At 4.5 carats, this faceted gem is a top-tier example from this rare and underrepresented locality. Its color play and mirror-like sheen elevate it from a simple collector's piece to a full-blown talisman of elemental light.