This exceptional 4.37 carat rainbow garnet from Arlit, Niger is the pinnacle of optical brilliance—by far the most vivid and bright iridescent diffraction of any stone currently in our inventory. Expertly precision-faceted, this gem captures and amplifies every flash of color through a masterfully polished surface, maximizing light return and spectral explosion from the garnet’s natural lamellar structures.

Measuring 11.4mm x 7.5mm x 5.05mm, the stone features a perfectly executed cut that aligns its internal diffraction planes for optimal brilliance, allowing electric hues of violet, gold, cobalt, and neon green to ignite across the faces in shifting bands of metallic fire. The luster is exceptional—mirror-like and crisp—serving as the ideal canvas to reveal the complex interplay of interference colors that define top-grade rainbow garnet.

Material from Arlit is already regarded as the finest source for rainbow garnet globally, but pieces like this—where precision cutting meets unparalleled natural optical performance—are virtually unheard of. This gem stands as the ultimate convergence of nature’s artistry and human craftsmanship, making it a crown jewel for serious collectors or a once-in-a-lifetime centerpiece for an elite piece of jewelry.

A living spectrum, frozen in crystal form.